I've been with AH for over a year and just started venturing into fighters. I started with Goons, worked over to bombers and so forth.
I've flown some training missions with my squads top pilots, and we seem to find the F6F Hellcat is a good all around fighter. Poor acceleration, good roll rate, can keep up with most of the better turn fighters for the first 2 loops, etc. Plus 6 50's with a ton of ammo is great for those of us who's gunnery needs work.
From my experience, the Hellcat can take alot of damage too. Downside is you won't be able to keep up with the faster planes unless you have an e-advantage. So if your gonna fly the kitty, be sure to start a fight with some alt to play with.