Now this is my personal opinion if you dont like it I am truely sorry the Internet is not for you but I would like to hear some of your additions because it took me the better half of a day just to decide on my 5th character. When I 1st decided to do this I was going to try and put some honorable mentions also but I cant even begin to think of another person. This is not Superman Prime 1Million and he does not have the Sword of Superman this is simply Superman.
Rogue is at the bottom of the list simply because the other 4 are to big of names and are Marvels A list characters. She has a very high chance of winning simply because superman doesnt go for the kill and any skin to skin contact she has grants her his powers his abilities his thoughts and his memories and for every second she is in contact with him it drains his life essence so she is a win because either she kills him with his own powers or she kills him with her own.
-a mutant who possesses the ability to absorb the memories, abilities, personality,life essence and outward physical characteristics of other beings through skin-to-skin contact. Such transfers last for 60 times longer than the contact time, with extended contact resulting in the possibility of permanent absorption.
-Upon absorbing another's memories, Rogue also gaines any associated emotional responses. Rogue is typically able to control such emotions.
-After permanently absorbing the powers of Ms. Marvel, Rogue possesses an amalgamated mutant human/alien Kree physiology that grantes her a degree of immunity to poisons, and a virtually indestructible body.