Sigh I play games from both sides and the answer is simple: Sackboy pause and delete and wins. No pk flash, no wishing on a triforce fast enough, no all the weapons Samus has, no jumping on heads can beat that, it is ridiculously hax. And besides about half of SSB roster is fooder compared to the PSASBR roster.
Sackboy cannot pause and delete. He can only do that if he is creating a level on creative mode, and he can only do that if he is the my moon. Which he is obviously not.
Well if everyone can use their feats without limits then why can't Sackboy? Heck have Light Jak with all his abilities and Ratchet and Clank they can probaly solo the people on Smash, with difficulty of course from people like Pit, Ness, Link and Samus who I consider their top 4, and Ganondorf may be immortal but honestly in every Legend of Zelda game I have played he wasn't really that strong, and his swordsmanship needs a lot of work. I would have considered Kirby but he gets hurt by walking into things and can't take a lot of hits at all.
If everyone could use all their feats then yes, Sackboy would clean house (literaly)
Meta Knight would own half of this roster