Darn tootin, ty. I recently sat through all of the variably good/dodgy lead-up movies in anticipation for this (and like every other movie I've been enthusiastic about in the last few years, I probably won't remember about it until sometime in 2014).
Yeah, its something I've been wondering about too, how they're going to make Hawkeye and Black Widow feel as badass and heroic as like Iron Man, or Thor, or the Hulk. I mean, on the one hand you've got a military sharpshooter, then on the other you have the Norse god of thunder. I don't see how you could make a threat thats epic enough and big enough to require the help of a god, while still having something that a normal guy with a bow could do to help out.
But I have faith in Whedon, so I remain optimistic.
Thor is a god and battled the Frost Giants for 9 months straight without rest, can The Incredible Hulk do that? Don't think so, he is just a man after all.
His stamina allowed him to battle the entire Frost Giant army for nine months without any sustenance or rest, Thor has also shown the ability to regenerate wounded portions of his body, including entire limbs or organs, with the aid of magical forces like Mjolnir.
The Hulk possesses the potential for limitless physical strength depending directly on his emotional state, particularly his anger. This has been reflected in the repeated comment, "The madder Hulk gets, the stronger Hulk gets." After probing, the entity Beyonder once claimed that the Hulk's potential strength had "no finite element inside." His durability, regeneration, and endurance also increase in proportion to his temper. Greg Pak described the Hulk shown during World War Hulk as having a level of physical power where "Hulk was stronger than any mortalâ€”and most immortalsâ€”who ever walked the Earth.