Hi,
Interesting but never ending thread, isn't it?
I have the feeling that each simmer has a different way to fly with FS, and even among modern jet lovers, you will find many different expectations.
May be it depends mainly on Superbug "level of love", then, are you, or not, interested into avionics and systems procedures. And, last of course, on how much time do you have.
Personnaly, even if I'm a navy fan, my "Mustang" is much more a F14 or a Crusader than F18. After that, I'm more intereseted in flying skills than avionics : failure and security procedures, for instance, are not my priorities when I'm flying with FSX. And last, I don't have so much time to learn how to take off with a particular plane, so imagine what I'm thinking about a 300 pages manual... (lol)
For now, I'm very happy with Iris and Dino's F14s, I can't wait for the Razbam coming products (especially the 'eyes ones : Buckeye and Hawkeye

) and I would love a Crusader... If they are Accusim or similar? why not, but to my own opinion, "realism" doesn't means "deep system features": in FSX, the pilot has only one mouse-hand with only two clic-fingers and a 2D-19inch wide view...
Regards
S.