I have PS360 also.
EA Sports games I get on PS3.
EA other games I get on 360.
All other 3rd party games, I generally split between them both depending on which system I got the first game in the series on first.
I would indeed buy Wii U versions, if they were on parity or improved if I already own it.
e.g. I already own NFS MW on PS3, but got it again on Wii U cause of the extra features. Neat little way to interact with your kids and off screen.