Re: Who would you let Joss Whedon kill in Avengers 2?
"Kill" Hulk, if Thanos is indeed the Villain and he has the Infinity Gaunlet...have him send Hulk to the other side of the Galaxy giving the appearance of his death. Then the Easter egg can be hulk on Sakaar setting up the next Hulk movie inspired by Planet Hulk.
It'd finally be the Hulk movie people want to see, a more intelligent Hulk for the majority of the movie, and we don't have to get yet another Hulk gets Mad and destroys a couple blocks of a city film. Can introduce a bunch of alien species to the MCU, maybe Beta Ray Bill himself, and have the GOTG find him and pick him up at the end maybe.