Really? The wii version sucked and was uber short. I'd rate it as the second lowest with the lowest being the gcn version (which was a port of 1). Best is still the 2nd one for GBA WarioWare Twisted. **** if you havent played that game, you better find a copy!
I really didn't play Wario Ware (Wii) in depth, but just a couple of time with friends and it was very fun. Haven't played the GBA version, gotta get a copy h:. Did play though the DS Wario Ware Touch and it was quite fun in spite of being too short. And I like Brawl for the sake of playing with friends and having tons o' fun, we don't play competitevely or nothing like that, I know people who played Melee like that and playing with them was really annoying, it took out all the fun of the game.