I played it first on PC, even though it's slow, but I still enjoyed the game
I watched TheMediaCows play it on the 360 on Youtube and I've played the multiplayer on Wii (General Kota's spin attack is so cheap, as well as Ventress's mindtrick, Maris's Force Repulse, Boba Fett's missiles (although if you get close to him, you can wreck him in seconds) and Starkiller's Lightning)
All in all, I prefer the Wii version, if only for the Multiplayer