Galaxy SIII, iPhone 5, HTC One X+ and 8X shootout: comparing video quality
 

When we look at the quality of recorded video on the Samsung Galaxy S III, Apple iPhone 5, HTC 8X and HTC One X+, the iPhone 5 comes out as winner, even if it's not by much. Runner-up is the Samsung Galaxy SIII, which has reduced sharpness when you enable image stabilisation. When it's turned off, the Galaxy SIII looks better, but then the footage is jerkier instead. The camera of the HTC 8X records very sharp but slightly dark video.

http://uk.hardware.info/reviews/3489...-video-quality