Both Cloud and Sephiroth definitely should be in, shadow and ocelot would be my next favorites, but they would probably be clones of sonic / snake if they do get in the next game.

they should put that one guy BLOOD FALCON
FOR SURE!

I'd say they should add Reimu and Marisa from Touhou. It would be an epic battle of Fantasy Seal vs Master Spark!

Ryu
Ken
Akuma
Goku
Gohan
Piccolo
BRING BACK PICHU!
That's it.
--EDIT--
M. Bison
Robotnik

Mega Man, Paper Mario, and Ryu is a good choice of characters.

I think that Vaan should be in there because he is good at killing fiends and is my second favorite character

I would love to play as Kumatora from Mother 3 because i think she is the most awesome earthbound character ever and i wonder how a voice actor would play her

I would Love to see Any sonic characters in smash bros. including Amy, Shadow, Tails, Knuckles etc.

I would also love to see all the generation starters of Pokemon in smash bros.

I think they should put Tails in the game.  That would be cool to play.  They should have never put Snake in.  He is completely different in Brawl.

I always thought it would be cool to have another e-bound character, like boney. A dog would be so awesome!! Just like knuckle joe, i plannes out his moves, too!
Normal: Bite-bites opponent 3 times for 4% ~ damage each time.
Side smash: Head butt- Rams into opponent and sends them flying. 12% ~
Up smash: Scratch- claws at opponent straight up and shoots them straight up. 2 hits for 8% ~ damage each
Down smash: Tail whip- swings around tail to knock opponents down. 2 hits for 2% ~ damage each.
Standard special: sniff- MAkes opponent weak to a certain psi attack. PSi attacks do 10% ~ damage more. Useless if Ness or Lucas are not in the brawl.
Side special: Bomb throw - throws a running bomb for a weak explosion. 15%~ damage
Up special: Howl- pushes enemy away. no damage
Down special: Pick up- like peach's garden attack. Could either find jar of yummy pickles, 5% damage healed, a bombom (spelling), or nothing. 90% nothing 5% pickles %% bomb.
Final smash: combo attack- a random mother 3 battle song plays. A message appears that says: Boney's attack! IF you press special/attack to the beat, it does 10 damage per hit. UP to 16 times.
The point is, too many humanoids in brawl!

It would be awesome to have Goku (DBZ) and Ryu (Street Fighter) in the next SSB. I'd probably be really good with them.

I think they should put Shadow the Hedgehog in the next Smash Bros. game

YoungGame : who is Niko Bellic

Perhaps 2 Pokémon from mystery dungeon acting almost like ice climbers or a Pokémon ranger character or even add in some team rocket stuff.

i'll like to see geno from super mario rpg  banjo from banjo kazooie and sora from kingdom hearts ( you know you want to put geno in ssb4 sakurai)

For actual Nintendo characters, I would say probably Bowser Jr. and difintely Krystal --she pretty much hinted in Brawl easter eggs that she could handle the fighting. For thrid-party characters, I would think Crash Bandicoot would be a great pick --before Universal hired anyone other than Naughty Dog to make the games.

A worm from the worms series. That would be epic.