Camera is one of the things that does matter. Had a play with a friends i4, and the camera on that is awesome, especially the video, but read about the g2, and it says it records in full hd, which is even more impressive.
I only use the phone predominantly to sit and play apps while i wait for meetings to finish, begin, start, etc etc.
Music and movies is the other thing I do ocasionally use them for, and I like the fact the g2 has expandable memory.
will just have to see whether the couple of apps I predominantly play are available on the samsung, and will most likely go for that