2) The hardware. I switched to the HTC One S because I wanted to have a bigger screen and the HOS is made out of an aluminum unibody. But the build quality just is not there. Reception sucks. Battery on the iphone is much better than on the HTC One S. There are seams and holes everywhere where dust builds up. Cheap use of plastics even though it has an aluminum unibody. The screen of the iphone is much sharper. Although its smaller, I still get more real estate when web browsing compared to the HOS.
The One S clearly has an inferior screen compared to the 4/4S. This was noted in several reviews I read. So complaining about such a thing after choosing to purchase the One S is pretty ridiculous. If you wanted a sharp screen, the One X was the obvious choice.