Well, I'm just shy of 2100 hours real world flight time, spread out over a period of about 24 years. I am single and multi engine and instrument rated. 99.9999% of it is in various general aviation aircraft. A smattering of some jet time here and there in military jets as a cadet in Civil Air Patrol (fun rides in which I managed to talk the pilot into letting go of the stick).
The smallest plane I've ever flown is a BD-5 (powered by a 500cc Kawasaki motorcycle engine) and the largest plane would be a DC-3 (during my days of sky diving). In between are various other small aircraft, everything from cessna 150's, 172's, piper cherokees, barons, bonanza, seminole, decathlon, citabria, D-25, T-34, T-6, stearman, pitts s-2, steen skybolt, piper cub (which I currently have unlimited access to), ultralights (Hurricane, quicksilver and weedhopper), hang gliders, and others. Pretty much anything I can rent, borrow or talk someone into letting me fly!
I also have about 35 hours of rotor time, although I gave it up...primarily because it got too expensive and autorotating is a very scary process of trying not to die...that and the Robinson R-22, contrary to popular belief, is a nightmare to fly

From a pure flight dynamics point of view, AH is very good. Still not the same as a real plane, but considering the limitations of sitting behind a computer screen with no real world tactil feel, it's not bad at all.
I dont think anyone could learn to fly in AH and then go fly a real plane, but there are certain aspects to real world flying that would carry over from AH experience.
The two biggest issues I have with the flight model in AH are:
1. The rudder. I don't think the rudder in AH acts like it is supposed to. It just doesn't feel as authoritative as it should.
2. Effectiveness of elevators when pulling over the top or, pulling when slow and/or inverted. To me it feels like airspeed is the sole governing factor for stall/elevator effectiveness. When one is inverted, or coming over the top of a loop slow, pulling back on the stick should cause the nose to drop faster than it does. That big heavy engine up front and gravity should pull the nose down harder.
I now many would puke at the thought, but random engine problems or failures, and even weapon jams or failure to drop (bombs) would add an interesting factor to the mix as well.....