About freakin time Little Mac gets some playable love. Incidentally, if Little Mac is in, Mario needs his ref costume somewhere in this game. If I don't get to use Little Mac to beat up referee Mario, if only for one challenge mission thingy, I will be mildly disappointed.
Pity that Doc's voice-over is so annoying... It's a neat idea, having Doc actually coaching Mac during the fight, but having Doc call out the attacks for him like some bizarre Pokemon trainer... has its drawbacks.
Still waiting for re-confirmation of Solid Snake, Mewtwo, and Jigglypuff (c'mon Nintendo! make its Rest insane again!), and I eagerly await inclusion of Travis Touchdown, somehow. (Suda wanted it, Nintendo expressed interest in it... let's make it happen! Smash Bros could use a badass lightsaber luchador!) ...come to think of it, didn't Nintendo recently score a WiiU exclusive on another badass brawler character, who may or may not fit uniquely into the Smash Bros. formula? I think they did.
...yes, I'm talking about Bayonetta, and yes, I think she should be in Smash Bros., for no other reason than to see what form Kirby takes when copying her... and to see if he spits her out as a hairball instead of a star, because that would be hilarious.