Soundwave on 19 December 2013
I played both at E3 and found Mario 3D World to look better, but I'm a sucker for cleaner image quality, MK8 was a bit more jaggy. It is the best looking Mario Kart game though (as one would expect).
Bayonetta 2 > Mario 3D World > Mario Kart 8 were IMO the best looking Nintendo games at their booth in that order.
