Originally Posted by SuperFerret
Iron Man's non-armored villains had better be bullet/rocket/repulsor proof or at least durable enough to, I dunno, actually fight Iron Man, or else it'll be a short movie.
Look at Iron Man 2, Whiplash was "fine in his first battle, but at the climax he was just Iron Monger again, with whips", which is true, and also probably because Vanko wanted to kill Stark in person, and he got his ass completely kicked in the first "battle" (if you can call two one-sided conflicts that occur back to back a battle) as soon as Tony got his armor on. He built himself Iron Man-like armor because (1) he was already using the same or similar tech, and (2) he needed to protect himself.
Exactly, if they're not durable then the whole movie will be just like Iron Man vs the terrorists in Gulmira, one big lopsided ass kicking.
It'd be boring and Iron Man would turn into the ultimate Mary Sue/Gary Stu.