Probably the same, if not few hundred millions more. I don't think Zoro's been entirely overshadowed by Luffy's accomplishments, but after the timeskip, he really hasn't that many accomplishments other than one-shotting Hodi, scaring Monet shitless, and impressing people with his ability to cut through stones (wasn't he able to do this even prior to the timeskip?).
He hasn't constantly been making a name for himself like Luffy has. Luffy went into a war out of his range, changed the tide of the battle, freed Ace, is revealed to be Garp's grandson, and is known as the son of the most infamous criminal in recent times. And on top of that, he's the captain who infiltrated Enies Lobby and Impel Down and even took on shichibukai. Zoro should at least be almost as well known as Luffy is, given they both got bounties around the same time that kept increasing, and Zoro's almost always been with Luffy. Zoro's fame comes from his being known as a decent swordsman as well, otherwise he would not have become a Supernova.
Buggy didn't really trick the stronger ones as much as they were dumb enough to misunderstand him and disregard the things he said. It's also hard to outshine your captain in bounty and renown when the leader usually gets the attention, since they're the ones leading the crew. I do want to see though, who's stronger between Rayleigh and Roger.
Zoro's fanbase is because of how he's portrayed. In terms of personality and demeanor, he's different from Luffy - where you just can't feel stressed with Luffy, you can be in awe or scared of Zoro.
I'm not biased at all, but there have been moments where Zoro was able to overshadow Luffy until Luffy beat the boss.
Wouldn't Zoro get a heart attack or bleed to death, then? I don't know if he absorbed that part of Gear 2, he probably absorbed the exhaustion and pain of it.
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