Originally Posted by
Ultimate Captain America
Everyone born before 2015 is dead. The only exceptions are Dr. Doom, Dr. Strange, Molecule Man, Mr. Fantastic, Black Panther, Captain Marvel, Star Lord, Thor (Jane Foster), Spider-Man (Peter Parker), Spider-Man (Miles Morales), Thanos, Black Swan, Terrax the truly enlightened (not 616 Terrax), Namor, Proxima Midnight, Maximus, Corvus Glaive and the Maker.
And from that list, let's remove...
* Thanos, killed by Dr. Doom in Battleworld
* The Maker, turned into pizza by the Molecule Man
* Cyclops, killed by Dr. Doom in Battleworld (even with the Phoenix power)
* Dr. Strange, also killed by Dr. Doom
* Thor, dead by cancer
* Molecule Man, killed by some multiversal entity in Slott's Fantastic Four
* Starlord, killed by Gamora during the Infinity Wars
* Terrax, killed by Franklin in Battleworld
* Namor, beheaded by Hyperion
* Black Swan, killed by Groot in Battleworld
* Proxima Midnight, killed by Hela
* Maximus, killed in a revolution in Battleworld
* Corvus Glaive, commited suicide before Thanos could execute him
* Peter Parker, during the Superior Spider-Man thing
So that leaves us with just Dr. Doom, Mr. Fantastic, Black Panther, Captain Marvel and Miles. Unless there were more deaths in there that I forgot...