Re: The Chitauri vs The Dark Elves
The Chitauri were not only cannon fodder, but they also had the Worst Achilles Heel In the Universe: blow up the mother ship, and the entire fleet and footsoldiers die instantly, too. That's, like, a major design flaw. If I was Loki, I'd demand a refund from Thanos.
That being said, the Dark Elves weren't particularly interesting, either. Their singularity grenades were cool, and Malekith was an extremely powerful dude for all of five minutes in the movie; but in the end, he turned out to be little more than another Parallax from Green Lantern.
THE COTTON AVENGERS
...They move like slick cotton on oil.