I absolutely detest:
(a) N1K2s. I hate them. I hate to fly them. I hate to fly against them. The N1k2 turns a good quality flight sim into a video arcade. I laugh when I see "SoAndSo landed 6 kills in a N1K2." They should be so proud.
(b) Typhoons. I hate them. I hate the way they always come in with rockets and pork fuel and vehicle hangars and generally make a nuisance of themselves. They make base attacks a lop-sided affair moreso than they already are. The offense in a strategy game always has the advantage and the Typhoon simply makes that advantage so much more pronounced. I also hate the way so many Typhoon pilots simply run away from a fight if you can find one that's not over your head.
(c) LA-7s. I hate them as offensive weapons. Specifically, I hate the way pilots will bring an LA-7 to an enemy airbase behind a raid. Don't they know that LA-7s are designed for intercepting incoming raids? If someone is doing a base capture mission, some dope who didn't join the mission briefing will always bring along his little LA-7 because he's too much of a nancy boy to fly a real plane, like a heavy P-38, Me110, Mosquito, or P-47, and help prep the base for capture. And you know he'll hang back and wait for the jabo guys to level the ack before he goes in for easy kills. If you're going to simply try to stab some guy in the back, at least bring a plane that gives a level playing field to your opponent, like a 109.
For me, these 3 planes really reduce the playing quality of the game.