Actually they are surprisingly agile in AH2. I took a break for a couple years, and something definitely feels like it changed.
I use the P-47-D-25 and D-40 for Jabo work, and after the ord comes off they are very competent fighters, even down on the deck. Once the flaps come out they can hold a flat turn with a radius that would do a zeke proud, granted the turn rate isn't much to write home about.
I would rate the P-47 as far superior to any 190 in a knife fight (which wasn't the case when I left), and a little bit better than the P-51D, simply because it has more snapshot power and durability and doesn't feel any less manueverable any more.
Given equal pilots you'd probably get eaten up in the MA low, but if you have even some slight knowledge on how to fight and you manage to kill your opponents quickly, you should be able to hold your own in it.