Brawl definetely, it's way more fun to play with friends and I play it longer than Halo 3. Halo 3 has a great single player but isn't fun for more than 10 times
Halo rLz, Master Chief could PWN all SSBB characters just get active camo, and plasma grenade chunks out of them all! ()_() [o o] [0^0] {O O} Copy and paste evil Picachu to help you rule the world
Brawl all the way. I own Halo 3 and I have to say, Why is there so many people thinking that it is the best game ever created. I mean all they did was a ad the forge and new weapons, and Halo 3 withut online sucks, the graphics don't really matter, so U can't give credit to that. While SSBB has many more upgrades, and actually has a story line that makes sense. Also it has a way better multiplayer system, seeing as it takes ten minutes to set up a Halo multiplayer match.
I Dunno.. Probaly Brawl. I Mean Halo Was Good And All, But There Is Like No Difference From Halo 3 And Halo 2, And SSBB Had Some Huge Changes! It Made The Game More Fun, And More Exciting.