Sorry I didn't know that was your style.
It's not a style, it's an observation you should make based on fact that you can't assume someone has disagreed with something simply because he hasn't said it... even if he has disagreed with all the other points.
The Overlord said:
You always start out with your biggest gun and Skull is the biggest villain Cap has. You can't be sure you will get a sequel, so you always use your biggest gun first. That's why Firefly wasn't the villain in the first Batman movie.
The problem I've always had with that is that you end up having diminishing guns.
Unless you happen to be Batman, who has the luxury of choosing varied big guns for each film... which is why it was still possible to do a film that didn't have Two-Face or Joker in it (and admit it, Ras al Ghul ISN'T an iconic Batman villain to the general public, and neither is the Scarecrow)
Singer on the other hand, was smart because he found a villain (Stryker, and the support of a large American black ops division) that was just as threatening as Magneto, but still thematically resonant.
But in any case, a big gun nemesis is a problem if you have nothing left to play for future movies. At this point, I'm not talking about how this theory applies to Cap (and honestly, I DO think Cap would need a decent gun in his first movie, Red Skull or otherwise) but to superhero movies in general.
Think of a hypothetical Daredevil trilogy that has him facing Elektra in a lovers or enemies movie, only to end with her being killed by Bullseye... and then Bullseye is the villain of a personal nature (OMG! You killed my girl!) and then his defeat leads to the Kingpin.
Let's say we're not looking at a Captain America movie as a one off thing, what do you do after Red Skull? Diamondback? Batroc the Leaper?
IMO, one way of giving Cap REAL threats without taking away from Red Skull would be to have HYDRA or AIM thrown into his movie stories, while injecting them with a palpably real world sensibility a la
24.