Originally Posted by hypercube
I think in this case it's that because it's an ensemble of unlikely teamups, the believability of some of the characters is tilted by the presence of some of the others. I do agree that Thor has always seemed a little out of place in the mix since all of his power is genuine magic, and all of the other members are basically "science" based, as far as outrageous comic book science will take it at least. Also I think maybe that the more fantastical elements you introduce the harder it might be to suspend disbelief. But really I think Thor is the only wild card, the rest seem fine in the same universe, IMO.
I think you are right. Thor is out there a bit more than the others are. Still, to someone who has read THE AVENGERS comics since childhood, as I have, Thor has been right there fighting alongside the rest of them for quite some time. He's not standing out so much to me. In fact, he's right were I expect him to be. Also, as Laa-Yosh already mentioned, they did try to make his existence more scientific in the THOR movie, just as Lucas tried to make the force more science based in the prequels, which I hated.
So, is Thor really that much harder to believe than the invading alien army they're battling? Or, a guy who after being exposed to radiation, turns green when he gets angry, is powerful enough to withstand artillery, and no matter how big he gets, or how much action he sees, his pants never rip off of him. Hey, I'm just going with it.