I think it was a pretty big feat no matter how you look at it. So, who else do you think can survive the boiling oil for 1 hour aside from Oden?
These are people who I think can survive it-
- Akainu (should be pretty obvious because of his elemental advantage)
- Big Mom
Maybe I'm overestimaging the feat. But ya, that's all. Maybe there are some more among the top-tiers, but only these guys have been specifically praised for their durability or endurance as far as I remember.