Bones0
Smash Legend
I think Kirby has fundamentally better qualities, but they are both so awful that you can't rely on fundamentals to win. The only way they are going to win is to gimmick the **** out of people, which means at the peak, Pichu is more likely to beat any other character than Kirby is. Sure, Kirby has actual moves and even some combos (utilt, uair, bair aren't totally awful on him), but those are tools for outplaying people straight up, not gimmicking. Pichu is fast and has a good nair and usmash. You're more likely to get gimmicked and gimped a bunch and lose a set to a Pichu than you are to lose straight up to a Kirby.