Which side is which? Left PS3 right WiiU?
Yes, you can see the the button prompts (X/O and A/B) at the lower right corner of the screen. [EDIT: looks like you picked up on that already]
What's wrong with those PS3 screens? They're really blurry, much more than any of the previous games, so I don't think it would be fair to compare the two. The right screens look much better by default, just because they're much clearer.