true.. iron man doesn't look all that good on screen like most super hero's because they don't allow them to go all out and explore their full capabilities or go exotic with there powers or armor...... if they did movies would be even better
He could beat every single one if he got to go one on one or at most 2-3 at a time. He'd probably be half dead if it was 4 at a time. But all of them at once?
Something like 70% were shoddily designed because Tony was making them just to make them and running on fumes as he did it. But some like Igor and a few others were put together fairly well and all of them had Repulsor tech, some had missiles, etc... All at once would simply overwhelm him.
Peter can definitely blitz the shit out of those suits. Killian was trashing them left and right, and he's no Spiderman in terms of speed, agility, or strength. Throw in webbing and a spider sense, and I have a hard time seeing the suits take Pete. Hell, include Iron Man and War Machine. They'd all be scrap metal by the end of the fight.