Which character has had the most enemies try to kill him?
Which long suffering character do you think has had the most people make an attempt on his/her life over the course of their history? A few ways of looking at it:
1) Highest number of overall enemies, e.g. where the Kree or The Hand would count as a single overall enemy each.
2) Total individual enemies, e.g. a thousand Hand Ninja count as a thousand individual enemies.
3) Most overall attempts? i.e. so if Joker has tried to kill the character a hundred times, that beats 50 different characters trying to kill someone else once each.