Remove: Pichu or some other Pokemon character which they have too many of.

Add: Isaac/Felix (Golden Sun) KICK ASS!

 Conker was more of a joke, I don't really want him in the game =P  Although I would love to see a squirrel character...perhaps Foamy? not quite a video game but his earlier flash videos were awesome.

I could also see someone like Kratos or Lloyd from Tales of Symphonia in the game also. ToS battles are almost rpg versions of Super Smash Bros. battles.

Remove: Pichu
Add: Lucario

Remove: Ice Climbers
Add: Sora (never going to happen, but I can dream dammit!)

Remove: Roy
Add: Mega Man or Zero (knowing Sakurai Mega Man would be more likely)

Add Megaman, Leon Kennedy, Sonic and a new cool Character created from scratch

Who would you take out for that?

Ok, I have another one =P

Remove: Wario

Add: A Tetris Sphere Piece! (from Tetris Sphere)

I actually don't care about the character so much for this selection, I would just LOVE to see a tretris sphere level where you are fighting as the tetris sphere level is being played. Dodging blocks as they fall into place (would probably have to be a bit slower than they really were in the game) and they could have pieces stop from time to time to use as platforms etc..

Remove: Everyone who wasn't in the original SSB from the N64.

Add: Marth

Problem solved.

Could you... elaborate a bit? I think Metal Gear is a great franchise, and it's one of the most key hardcore franchises in the industry over the last decade. Why would you dislike Snake so much? 

remove : pikachu
add : banjo-kazooie