I got the GS3 on 7/6 because I pre-ordered and had it until I exchanged it on 7/14 for the MAXX. I did extensive reception & download speed testing between the SG3, a Droid 4, my old Inc2, and the MAXX. I would also like to preface this by saying that I have never been a fan of Motorola phones and have always been a die-hard HTC fan, but decided to try out the SG3 because it was the latest & greatest. Also, I did not update the phone to ICS since I'd been reading about all the issues here. Here are my thoughts:
I expected to *love* the phone (SG3) and I didn't. It felt too big to me and weirdly, too light. I just never had that "OMG I *love* this phone" feeling.
Reception in fringe areas on 3G was horrendous. Worse than my Inc2, much worse than my husband's Droid 4 and much worse than the MAXX. Inc2 would always be at about -95 to -98 in our house, Droid4 would be at about -89 to -95, MAXX sits at about -93 to -99, and GS3 was aways around -99 to -110. It would drop down to 1x or lose the data connection all the time.
Data speeds on the GS3 were not good. On my Inc2 I'd usually get around .6 to 1.2 Mbps download speeds (using speedtest.net app), Droid4 would get 1.0 to 2.0 Mbps download speeds, and the GS3 would get 0.2 to 0.6 Mbps. MAXX is getting 1.0 to 2.0 Mbps. Now, this is again on 3G only and in a fringe area. In town, where there is an excellent 3G signal the SG3 would be just as fast as the Droid 4 and MAXX.
WiFi connection would fluctuate constantly. I work in a hospital where there is excellent WiFi coverage everywhere. I could have the SG3 sitting on my desk and watch the phone lose WiFi and pick it back up again.
The screen on the SG3 was beautiful! Crisp, clear, wonderful to look at and a great size for watching videos, reading, and playing games. MAXX seems to have a bit of a darker tone to the screen than SG3. Nothing that ruins the experience and still very nice, just not quite as nice as SG3.
Camera on the SG3 was fast, however, I too kind of thought the pictures weren't as clear as I expected. I was pleasantly surprised by how nice the pictures came out on the MAXX and that the MAXX took pictures quicker than I expected.
I also did not like how the gallery was set up on the SG3 and how it was side scrolling and there was no scroll bar to drag to get to the older pictures quicker. I do like how the MAXX takes you directly to the newest pictures first (something my HTC phones didn't do), so you don't have to scroll to get to them every time.
I hated TouchWiz and put Go Launcher on the SG3 immediately. I did the same with the MAXX.
I did not like how the Settings menu was set up on the SG3. It just seems like things were hard to find.
I loved how the lock screen looked with the water effect. It was just very slick.
The SG3 was quick! Holy cow, was it fast and lag free. MAXX is not quite so fast, but still decent and faster than the Inc2.
Even though they are basically the same size, the MAXX seems smaller in the hand to me. It's also easier for me to hold. Now, I do have really small hands, but the difference between the two phones was very noticeable to me.
I have to say, I am really impressed with the MAXX. While I'm not quite to the *love* stage with this phone, I can say that I really, really like it a lot
and it is far and away a much better phone for me than the SG3 was. I may have had a lemon though for the SG3 or it might just be that it doesn't perform well in fringe 3G areas, but the MAXX has been working out great for me.