let's name their downs to make the comparison more objective:
wolverine -
witnessed his father's murder and his mother's suicide, accidently kills the woman he loves (rose) when defending himself from dog
lost rose, mariko, daken's mother, silver fox and countless other lovers to violent deaths. had to kill jean to put her out of her misery - go to guy for killing phoenix hosts out of their minds
got tortured, brainwahsed and warped into a killing machine a dozen times over by weapon x/plus, romulus, apocalypse, etc.
sent to hell and tortured, overthrew the devil
tricked into killing several of his own children by daken and the red hadn; forced to kill daken to keep him from slaying all the students in his school
bounced back from everything - no one can claim his (sometimes self-imposed) memory blocks are behind it either 'cause he's recovered all his memories and kept going and the worst of those traumas have all come over a period of intact memory creation and retrieval
end result: carrier of xavier's torch, school teacher, x-men, avenger, saved the world a thousand times over.
now, who can top that? specially the part in bold.