I'll get both. The 3DS version to be able to play on the go, and since my closest friends only have a 3DS, so it is a bit better to play together, than to just do a reunion that some may miss, to play the Wii U version.
The Wii U version, will still be my main version, I prefer consoles for these type of games, plus I have more music, and lots of Nintendo characters appearing for the first time in HD.
COMG guide to points: 1 point = Raging. 2 points = Beasting. 3 points = Tearing it up. 4 points = Berzerk. 7 points = Rampage. 12 points = Burst. 15 points = god mode. 20+ points = DIVIDING BY ZERO!!! 40+ points = Youkai (originally Pokemon).
-1 = Negabeasting. -5= NegaRampage. -10 = NegaBurst