Suggested by vaderthedominator Both of these villains are some of Marvel’s strongest fighters. Graviton was able to combat the likes of Hulk and Thor at once during the Avengers EMH debut episodes which was incredibly impressive. Honestly, I’d easily take him over Magneto when they’re both in base mode. However, Magneto does have the Phoenix Force which upgrades his powers to crazy levels. It will suddenly be a simple matter for him to incinerate Graviton’s barrier and hit him directly. Graviton can take a lot of punishment, but the difference in their strength levels will be too great. Magneto wins.