I like QQplayer a lot it plays everything I've ever given it, (I've not tried anything HD, max was high bitrate SD the 2x700mb avi xvid movies) and it's free with no internet permissions or ads.
The update to it in the market made it stop working for my inspire for a few months, so I had to use an old version. I just installed new from market today and it works again. Still keeping that old apk just in case. I really like the new screen brightness swipe gesture.