Some of these people don't want the hulk, or iron man, or *insert powerful hero here* to lose ever, in pve or pvp. These people are the ones that got upset and said the Kingpin/bullseye fight was too hard, just because they had to follow the mechanics of the fight instead of facerolling it with the hulk. As for your question, in the comics, no, but in a balanced game, yes, if the hawkeye player outplays the thor player.If they added a Power rating system to the game tied to rewards or scores this could work, but that is the kind of design decision you build a game around not throw in a month before launch. Really though should Thor ever lose to Hawkeye? Some heroes and villains are more powerful then others. This game mulches them all up together.