Like how much?
It depends on POV - on which doctrine you think is more effective imho. Either you think this stealth thing actually works against countries which have a reasonable amount of SAM sites, combat planes and so on or you don't.
My point was, that so far the glorified image of just this kind of doctrine has never been used against an opponent, that could mount any significant amount of defense. That is why i can understand why some people aren't as convinced as you are, because frankly, the superiority you are mentioning is basically superiority, that was created in articles, opinions, budgets and simulations.
Like you, you neither now every detail of both doctrines nor do you therefor know which one is "better" but still you tell the folks how America is "a couple of decades ahead". Sorry, but that's not really convincing.
As for me i'd wish we'll never find out. But if it happens some day i doubt it would like you are implying in this thread. Sadly though no-one would care about flight-sim accuracy anymore. :(