Finally officially (in the manga) and officially (VC bounty section) confirmed below Luffy's!
After years, Luffy>Marco in bounty is finally proven right.
"Yonko candidate Marco,... top tier pirate ...bounty above Luffy" RIP
No revo commander was high tier except Ivankov who's YC level (mid high tier) and Sabo who's low top. The rest are Veteran tier. So their bounties make senses.
Sabo 600M bounty is symbolic, he's above Ace while both still being above pre fs Luffy. + that's his first bounty.
Izo bounty is shocking. Never expected that.