I always thought this was a ridiculous battle...Hulk basically can have infinite power...The madder he gets, the stronger he gets. The hulkbuster is technology, and theirs only so much technology can do. I guess there could be some circumstances when the hulkbuster would win, however I think this was an easy win for Bruce Banner, aka the Hulk.

However, this could be because I'm biased, the Hulk is my favorite Marvel superhero so...