im sorry im lazy so i didnt read all posts, but if u think about it even though Superman dosnt kill when he was in a fight for his life agianst Doomsday, he did kill. Superman would kill Wolverine before he'd die. Besides Superman dosnt have to destoy Wolverine's skeleton to kill him.
Throw him into space and he'll die. Healing factor or not.
no he wont, wolverine has survived space, read a comic
superman would win, i dont think he would kill wolvie, not because of wolverines healing factor, but because superman wouldnt kill a character he simply keeps beating down swing after swing, wolverine isnt in supermans class, and supes wouldnt kill someone who doesnt prove much of a threat