I agree with most of them. Layton, Little Mac and King K Rool would be awesome. Pac-Man would be cool but he'd need to be done properly. Mega Man, while I'd hardly say I'm a fan, would fit in Smash perfectly. I'd much rather have Ryu from Capcom but I'm sure more people would be happy with the Blue Bomber.
Can't say I want Waluigi. I just don't see him as a big enough character to justify a slot. If the roster is smaller this time round I definitely think there are bigger names. I'm not quite as hostile to Bowser Jnr. as he's a little more unique in my opinion, especially if they give him paintbrush moves from sunshine. However he'd need to be unique. Not some faster, weaker Bowser. Come to think of it I'd love to see how he'd look. Bowser looks amazing in Smash and a Bowser Jnr. With that design would be incredible.
As for the rest, Geno would be awesome but we all know the rumours from brawl. Some say he was considered and there is a Mario RPG track hidden away on the disc. Travis and Jack aren't anywhere near big enough to be in Smash. Between them they've had 3 games? I can't say I've played them. Mr Driller makes sense but I think Pac-Man is far bigger for Namco and they should only have one character per 3rd party (that means no tails, knuckles or shadow nonsense sonic fans!)
Thanks for reading, you know its nice to see people like you reading what I have to say, and I aplaud you for puting up with my bad gramar and spelling mistacks.