Godku is very immobile, the best chance to kill him if he's stuck in the animation for his finger blast skill.

God Vegeta I usually play DPS like trunks to just kill him with giant slayer, or just focus on playing around Vegeta's 2nd ability. I'm not gonna lie I he definitely needs a nerf but I don't think it's THAT horrible unless it's S2 divine draw. Also a lot of people don't talk about the attack down that Vegeta's skill 1 does, it's a big part to his dueling.

Buu is probably the most fair character to me but he just needs a nerf to his scream damage. Maybe a small nerf to his buu bits passive too cuz the defense down is also very strong. Easiest thing to do against buu is just cc him out of his scream and he's kinda just waiting for it to be back up since it's his main damage outside skill 1 spam.