Wow, WiiBash hate.

K... Reasons why it's awesome & worth buying:

• It's fun. Always the most important thing with a game, and TBH I had more fun playing the Wii version than the PC one.
  
• New stuff. Yeah, hair, rewind, sticky blood, boosted joints etc might not seem like a big deal but think about it - they're new! How often do you see random stuff added to the PC version that isn't an item or engine/render improvement? The rewind feature is especially good for replay making, no more having to press R then pause followed by advancing to the exact frame you want. You can just go back.
  
• Multiplayer. Online - check. Hasn't anyone noticed that the game doesn't make you wait in a queue? You get put against another person there & then. Oh, and local multiplayer - does the free PC version have that? Didn't think so. ;) Now you can play face to face with someone on the same machine. It's awesome, though it did make me want to jam my Wiimote down nutty's throat! XD
  
• No more slowdown or breakages due to updates. It just works and that's all there is to it. You're not going to have problems with new versions because it doesn't need patched & everyone's hardware is equal.
  
• Supporting Nabi. Buying the game = Nabi gets money. That money is then used to develop. You can figure out the rest.
  
• It isn't exactly the same game. You already know that due to physics changes you'll have to come up with new moves. The game may work the same, but it doesn't play the same. Like I stated earlier, it's more fun.
  
• No douchbaggary. Yeah, you're not going to have someone hurl abuse at you. No one's going to accuse you of cheating for doing something. No one's going to quit just before you win (<3 Wii Wifi & it's exit/shutdown lock). There'll be no server ops repeat kicking you because they think it's funny.

Nutty's pretty much covered the rest, and regardless of what others think I'll be buying it the day it's released. Then again I've played it & know how win it is.