wii u as you can play wii games on it

Wii U, more games to play since you just have a Wii built in

Wii cause it has a good animal crossing game

also it plays gamecube games

If you can afford it go for the wii U since you can play wii games on it and you also get a virtual wii system

wii u theres already a vwii in the wiiu that you can mod