That would be me. I've never tried another sim (except for DCS, which lasted all of 30 minutes because I couldn't get the dang plane moving ). However, I have been willing to try others. I just enjoy AH and the nostalgia it brings me.
Nothing wrong with that.
There is a lot that AH does right. A lot other sims could learn from AH, and vice versa.
I think AH has a larger potential market. I think it makes a reasonable compromise between hardcore fidelity and gamey non-sense. Those are conscious design choices. Many want more that gamey WT but may not want the fetish level of DCS. AH is right in the meat of that curve, but is unable to capture the potential for various reasons. That doesn't necessarily mean AH needs to add more engine management.
I think it's complexity is in a good sweet-spot for a wide range of players. It is other issues keeping it from capturing it's market potential, which is probably larger than is what is looking for DCS' level.
Too far down the Sim axis and it can become burdensome to more players who aren't as OCD.
Too far down the Gamey axis and it begins to not reward skill. Too gamey and everybody just gets their turn to be lucky. There is not enough there for a skilled player to achieve any edge as a reward for having developed skills.