Loool, PS3 hadnt so much advantage over 360.
360 had better GPU and was easier to develop for.
Now, PS4 has great advantage over One, and is easier to develop for, the gap is much bigger.
and the gap with old gen is also bigger, you dont know because you only look visual, you need to see the game in action to see the big improvement in physic terms for example( not really the One because we didnt see any game like Infamous/Knack/Deep Down, the gap between both may be the physic, much more improved on PS4 )
Predictions for end of 2014 HW sales:
PS4: 17m XB1: 10m WiiU: 10m Vita: 10m







