Here's where you go for smash bros brawl info
http://www.smashbros.com/en_us/index.html
Sorry if some/all of this is old news to some, but it looks like the smash thread is a bit underdevelouped
Mentionable assists trophies
Little Mac (I know
lots of people wanted him)
Knuckle Joe (Kirby Super Star)
Stafy
Waluigi
Hammer Bro.
Andross (the SNES star fox. the only
cool andross)
Excite Bike
Lakutu (I don't know how to spell that)
Lyn (Fire emblem)
Jill From Drill Dozer. Though she is not listed on the site, a video of the game clearly shows her there.
http://media.wii.ign.com/media/748/748545/vid_2158968.html
And you may think you see Luigi there, but that is Mario in a colour swap
Sonic is playable. Super Sonic is his Final Smash
Diddy Kong is playable
King Dedede is playable
One of his special moves is the Waddle Dee toss, which makes him toss Waddle dees. Sometimes Waddle Doos, and Sometimes Gordos (the spikey black ball guys) Final smash is "Waddle Dee Army"
Pokemon Trainer is playable.
Pokemon Trainer fights by Rotating between three Pokemon. Squirtle, Ivysaur, and Charizard. one of those three. You can switch Pokemon during the fight too. His final smash makes all three pokemon come out, and they shoot their super attacks all together. Squirtle's Hydro Pump, Ivysaur's Solar Beam, and Charizard's Fire Blast. A message screen at the bottom pops up saying "It's Super Effective!"
Number 4 for most voted character was Geno from Super Mario RPG. Seeing as how the top three most voted have become playable, (Sonic, Diddy Kong, and King Dedede) it is highly likely that Geno will be used as a playable character. If this becomes a reality, you can be sure I'll be dancing around like a lunatic in happiness for several days.
It is also highly likely that Marx (the final boss from Kirby Super Star), will be a boss in the Subspace Emissary. Though the amount of Kirby stuff is getting to be quite large. let's recap on Kirby stuff
Kirby
MetaKnight
King Dedede
Knuckle Joe
Waddle Dee
Waddle Doo
Gordo
Combo Cannon: For those who don't remember, Combo Cannon is the Cannon on the Halberd in Kirby Super Star. It is also on the Halberd in the Halberd battle field.
BattleShip Halberd
Maximum Tomato
Warp Star
(Quite Possibly) the Star Rod, seeing as it was in the last two smash games.
And even the Spicy Curry from Kirby's Dream Land.
You may also want to check out this awesome montage
http://media.wii.ign.com/media/748/748545/vid_2158968.html