I don't really have a problem with women serving on Subs and the like. I also don't have any issue with them being in combat areas for certain roles. Call me chauvenistic, but I shudder at the thought of them actually doing strict combat duty. It's not that I don't think that they can do it, because some of them certainly can. I had met a few women in the course of my service that were flat out more manly than me. Where it starts to get blurry for me though is I do believe that it puts fellow combatants at risk. I think men are naturally protective of women, and might put themselves at risk to the detriment of the mission to protect them. I know that any combat soldier would go out of their way to save a fellow soldier in most cases, but I think it might go even more so in these circumstances. But maybe I'm just old fashioned and out of touch with the young people joining today.
From what I hear, the Air Force does it right where promotions are done by their skill levels in reference to their job and not how well they can recite a creed or run 2 miles.
This is certainly true to an extent. You get a certain amount of points for everything from medals awarded, types of service (short tours, overseas tours, etc) time in service, time in rank, etc. There are points for passing the Phys Fitness aspects, and knowledge of the UCMJ and AF history, but it's a relatively small percentage of the overall score. The largest factor in promotions is the test they have to take for their particular career field.
That's how I recall it anyway. From talking to others in the Army, Navy, and Marines it seems physical fitness scores are much more relevant to their promotions than for AF. I'm not saying that the AF "does it right" but they stress other factors. Then again physical fitness isn't generally as important as it is for the other branches either.
Some people are like slinkies, they aren't really good for anything, but they still bring a smile to your face when you push them down the stairs.