@Red:
How is Luffy>Usopp>Sanji?
Usopp was branded a liar by his community and lies to his mother in order to keep her alive however she still died. The only thing he looks up to is his father and he hasn't seen him in forever.
Sanji was saved by a legendary pirate who lost everything in order to rescue him. Zeff even lost his leg.
I just don't understand how their parts weren't sadder than Luffy's.
Well Luffy did lose Sabo. His past also seemed sadder because it was revealed right after Ace died so it meant more. Being branded a liar isn't necessarily a bad thing for him, I feel like he never cared and is sometimes even proud of lying. He also lost his mother to illness, but almost all the Strawhats lost someone, so, yes while it is sad that he lost his mom, some of them have lost even more.
But I do agree that Luffy's past wasn't really too sad. Meh. I feel like Sanji had more of a rough past than a sad one, because after those 80 days on that rock he had a pretty cool life.