SSBB- A true sucessor to the excellent Melee.
Super Smash Bros. Brawl was the game I bought a Wii for, and it has not let me down, there is a great roster of characters, and some of the new additions are truly great (here's looking at you Pit and Meta Knight!) and fun to play, the characters animations are definitely top notch, a big improvement on melee.
The sound is great, with a seemingly endless amount of game music, all very nostalgic. The loading times are massive compared to what I expected, and along with the gimped random online features these are the only problems I have with the game.
I could not bear to give it less than 5 stars, the Subspace Emissary single player campaign is excellent, and very long, although it does feel fleshed out, and there are a good lot of interesting and fun evens to try also. Controls are sharp and responsive, although you will want a Nunchuk with your Wiimote for best results.
If you own a Wii you need this game.