Damn, it's not even fair.
Big Mom was pretty interesting before weeding cake crap happened when she became pure meme while Kaido never even had a real characterization and was all about "I'm too strong" and Oden PTSD.
Shanks only needs 1 panel to shake the fandom. Dude is an eternal mistery and hype machine.
Blackbeard is an amazing villain for the series, has been great since pre-TS, always a fun character to see even if just it's a minor panel.