Having read this article over on CNet Crave UK I couldn't help but compare it to the standard voice offering within Android.
To get the results of the test for Siri and S-Voice look here:
Samsung Galaxy S3's S Voice vs Siri on iPhone 4S | CNET UK
Here is me doing the same test with Google Voice:
Here is my response to the article:
Test One: Call Luke Bailey, the standard Google voice recognition on my HTC One X hits this one out the park... RESULT: Success
Test Two: Whats the weather like today? Another instant success with the standard Google Voice offering, bringing up Google Search with a 5 day forecast for my location in Wigan, UK. RESULT: Success
Test Three: Do I need an umbrella today? This trips up the standard offering by just doing a Google Search for the statement but the first result is half way to success by giving me the option to input my location (which I do again with Voice on the keyboard and it returns a successful YES response) RESULT: Fail
Test Four: Text Luke Bailey, again instant success using the standard Google Voice recognition offering. No problems understanding my Northern Monkey accent when I say "Text Luke Bailey, You will need an Umbrella today."
RESULT: Success
Test Five: Slight change of question to suit myself I ask "Find a Good pub nearby" The standard offering understood what I asked but hesitated slightly and gave me five options to pick from. The top being correct required me to use my hands but then swiftly brings up Google and having used location services brings up various pubs.
However even with 15+ pubs within a mile of my house it only brings up those with Google listings the nearest of which is 5 miles away. RESULT: Neither success or fail but requires work.
Test Six: Directions to Wigan Town Hall, it doesn't fail to accurately understand my command and brings up Google Maps with the right directions. RESULT: Success
Test Seven: Set Alarm for...unfortunately due to Google Voice not integrating with the Clock App on my HTC One X this results in a web search when asked to set the Alarm for 1023pm. However Google do list this as a valid command... RESULT: Fail
Test Eight: How High is Mount Everest? 29,029feet bang on and instant answer. RESULT: Success
Test Nine: Tell me a joke? Asking the standard Google Voice to talk to me made me one. RESULT: Fail
Test Ten: Search Bonobo Apes, apparently my Northern Monkey accent isn't helping here and after two attempts I give up but it does seem to think they are Noble Apes lol RESULT: Fail
Test Eleven: Google Voice does not integrate with the Calendar app and offers no commands for it. However I can open up Google Calendar in my browser via Voice to input manually.
Still...RESULT: Fail
Test Twelve: Again as the standard Voice offering is not designed to talk back to you all this does is make me look like a twonk. However for me this beats S Voice and Siri hands down as the web search this results in gives me the YouTube Video for Crossing the Bridge of Death in Monty Python and the Holy Grail. Result: FAIL but laced with WIN
Test Thirteen: What's the best smart phone? Well having asked Google Voice it returns with a web search and in the top sponsored results I find the HTC One X with an average of 4 and half stars out of 5 from over 120 seller reviews. Not perfect as it doesn't take consumer reviews into consideration however as I get a result which neither Siri nor S-Voice does I say... RESULT: Success
Test Fourteen: Update Twitter, Again lack of app integration means another web search RESULT: Fail
Test Fifteen: Speed? What is the Capital of Iraq? Answer: Baghdad in 3 seconds flat...RESULT: Success
Conclusion: With seven successes and having read how the Siri and S-Voice offerings don't really fare much better my conclusion is that voice commands only serve their purpose while doing other tasks such as driving and you can't hold your phone. Leaving me with the same opinion I had at the outset, if you either brag about having Siri or I see you talking to your phone as they do in the ads in public, I reserve the right to tell you, you look like a tw*t.
To get the results of the test for Siri and S-Voice look here:
Samsung Galaxy S3's S Voice vs Siri on iPhone 4S | CNET UK
Here is me doing the same test with Google Voice:
Here is my response to the article:
Test One: Call Luke Bailey, the standard Google voice recognition on my HTC One X hits this one out the park... RESULT: Success
Test Two: Whats the weather like today? Another instant success with the standard Google Voice offering, bringing up Google Search with a 5 day forecast for my location in Wigan, UK. RESULT: Success
Test Three: Do I need an umbrella today? This trips up the standard offering by just doing a Google Search for the statement but the first result is half way to success by giving me the option to input my location (which I do again with Voice on the keyboard and it returns a successful YES response) RESULT: Fail
Test Four: Text Luke Bailey, again instant success using the standard Google Voice recognition offering. No problems understanding my Northern Monkey accent when I say "Text Luke Bailey, You will need an Umbrella today."

Test Five: Slight change of question to suit myself I ask "Find a Good pub nearby" The standard offering understood what I asked but hesitated slightly and gave me five options to pick from. The top being correct required me to use my hands but then swiftly brings up Google and having used location services brings up various pubs.
However even with 15+ pubs within a mile of my house it only brings up those with Google listings the nearest of which is 5 miles away. RESULT: Neither success or fail but requires work.
Test Six: Directions to Wigan Town Hall, it doesn't fail to accurately understand my command and brings up Google Maps with the right directions. RESULT: Success
Test Seven: Set Alarm for...unfortunately due to Google Voice not integrating with the Clock App on my HTC One X this results in a web search when asked to set the Alarm for 1023pm. However Google do list this as a valid command... RESULT: Fail
Test Eight: How High is Mount Everest? 29,029feet bang on and instant answer. RESULT: Success
Test Nine: Tell me a joke? Asking the standard Google Voice to talk to me made me one. RESULT: Fail
Test Ten: Search Bonobo Apes, apparently my Northern Monkey accent isn't helping here and after two attempts I give up but it does seem to think they are Noble Apes lol RESULT: Fail
Test Eleven: Google Voice does not integrate with the Calendar app and offers no commands for it. However I can open up Google Calendar in my browser via Voice to input manually.
Still...RESULT: Fail
Test Twelve: Again as the standard Voice offering is not designed to talk back to you all this does is make me look like a twonk. However for me this beats S Voice and Siri hands down as the web search this results in gives me the YouTube Video for Crossing the Bridge of Death in Monty Python and the Holy Grail. Result: FAIL but laced with WIN

Test Thirteen: What's the best smart phone? Well having asked Google Voice it returns with a web search and in the top sponsored results I find the HTC One X with an average of 4 and half stars out of 5 from over 120 seller reviews. Not perfect as it doesn't take consumer reviews into consideration however as I get a result which neither Siri nor S-Voice does I say... RESULT: Success
Test Fourteen: Update Twitter, Again lack of app integration means another web search RESULT: Fail
Test Fifteen: Speed? What is the Capital of Iraq? Answer: Baghdad in 3 seconds flat...RESULT: Success
Conclusion: With seven successes and having read how the Siri and S-Voice offerings don't really fare much better my conclusion is that voice commands only serve their purpose while doing other tasks such as driving and you can't hold your phone. Leaving me with the same opinion I had at the outset, if you either brag about having Siri or I see you talking to your phone as they do in the ads in public, I reserve the right to tell you, you look like a tw*t.