Haters gonna hate. The general perception of screen sizes keeps changing every year, yet the blind folks do not want to admit to it. A 4 inch screen is optimum? Sure, but if I were to get a phone with a 4 inch screen and another with a 4.7 inch display and everything else is same, I'd go for the larger one. Three years ago, my 3.2 inch Nokia 5230 felt like a huge upgrade in terms of screen real estate over the older Nokia N81 and I didn't think I could go beyond 3.5". I now find my 4.3" S2 bordering on adequate and keep yearning for the 'sweet spot' of 4.7" of the Galaxy Nexus.
Maybe after a year, 5.3" will be the new 4.7" for me. I just wish Jobs' blind followers would wake up to this fact. The S4 has smaller dimensions than the S3 despite having an extra 0.2" in screen size. Do they even look at these figures or just go around hating blindly?