Akainu told WB that he would have a gaudy funeral -> hopened a hole in his body, sent a portion of his head to Disneyland after an enraged sneak attack which didn't achieve much in response.
Stopped WB with his hands in his pockets, terrorized the WB pirates multiple times, took out people left and right, killed a commander and scarred Luffy for life both physically and mentally. And more.
And he still waits to have his battle with Luffy, after the rumored WSC already went down.
Mihawk fucked around the entire war and he is stronger than the naked street dancer Kaido still has PTSD for.