Anime team is destroying him. If ki blasts are removed Kaidou clears DBZ.
Can Kaido beat Buuhan? The other Buus? Dabura? Cell? The Androids? Even with ki blasts removed you still have the matter of speed and strength in which Kaido is far outclassed in both by any of the mentioned characters. Also there's the fact Cell can absorb in his imperfect forms, Dabura can turn living beings into stone by spitting on them, and the Buus could turn him into chocolate in the blink of an eye. That's just a bad comment.
The dragon slaying sword solos the entire Fairy Tail verse, Black Barrel kills both Zeref and Acnologia GG.
Ok that's a little overdoing it though, Zeref and Acnologia (especially ROT) are not to be underestimated, can Black Barrel kill an immortal? Zeref has his Ankhsheram Instant Kill magic. Also Acnologia is immune to all magic, unlike plot opinion. FH Zeref has the power of infinite thereon blasts and ROT Acno has the power of time itself. There's no defeating them together.
Also I completely forgot about that post 2 months ago...
Erza still has a chance against Gilgamesh I'd say it's quite even (Although the amount of plot armor on her is ridiculous, if you've seen FT, you'll know what I'm talking about). Sure she was heavily winded when she used 200+ swords when she took down most of Thunder Palace, but she's got quite stronger between then and Alvarez, and there's plenty of arcs to get stronger. She did destroy that meteor Irene summoned (Although I will admit she used some of her plot armor to do that). Even if Gilgamesh wins with his foreseeing abilities and Gates of Babylon, Era isn't going down easy.