The only thing you can really compare is the innate aptitude for deflection gunnery and knowledge of ACM. You could probably say those with good ACM knowledge or excellent deflection gunnery could, with the proper general combat aviation training, translate that into real world performance. But, almost absolutely everything else is different. There's no physical sensations of flight in AH, real combat flying was physically rigorous and exhausting.
There's also no real death in AH, that has an enormous impact on how people fly. Not having real death makes people experiment more, whereas in real-life they would tend to stick to tried and true methods they find themselves particularly good at. Real death made people think a lot more before acting impulsively. Real death made people pay attention more so SA and communication was much more important. Real death made cooperative tactics necessary for survival, most patrols were in larger and tighter groups. Real death made certain tactics used very efficiently in AH very dangerous and therefore much more rarely employed in the real world. So, in a game with no real death, most of what we do is not what a real life pilot would probably do in the same situation, unless you fly specifically to survive and even then it would just be a crude approximation.