Yes I completely forgot about KDJ, but honestly he's amazing with whatever character. There's also some Chudat vids, I was trying to think about vid quality though.
I think Kirby has more potential than Pichu at winning a tournament, disagree with me if you want or call my opinion invalid or cry into your pillow. Don't really care "m8". I like Pichu a hell of a lot more, but Kirby is just more viable.
Pichu's dash attack has really bad end lag and animation that leave him extremely prone. The hitbox is small, and once he launches into it he actually slows down....on a dash attack....makes no sense. It can end combos well, but if it whiffs you're toast.
Kirby has an even worse dash attack, THE WORST. But he has a good fair/uair and excellent bair and a good up-smash and can zone like Jiggly puff (hitboxes not as generous), his dair can also spike and he has the ability to suicide when at unequal percents. Tilts are all good, his puff jump allows him to easily change orientation in the air to get a bair or fair out fast and his Dsmash also has upward KO potential as low as 120% from neutral and comes out fast.
The main problem with Pichu is trades, he will always lose plus he will be adding damage to himself. He was made with the sole intent of being a handicap character with a depressingly light weight (21.5% less than even Kirby)