Well, from experience, the Hurc1 is fairly nimble and stable at low speeds. Has a good guns package (enough for at least 3-4 kills the way I shoot), and once it gets up to speed is decent. The Zero has ... shall we say "way enhanced abilities" since AH2 changed the way it flies. Luckily the_recent wing stress fix kicked in and the plane groans at more reasonable G-forces. The cannons are good for a few kills but then you still have the 7mm and 13mm to kick arse with. Turns tight, if less stable than the hurc1, and it can do vertical better than the hurc1 (I think it's lighter).
However, the P40B is slow, unmanuverable, unstable at slow speeds, has a crappy arse guns platform (I know this because I've been trying to get kills -- any kills -- with it lately). It brings nothing to the fight. If you dive in on a target you might do well. If you have the advantage you have a chance. But it's sub par compared to the other 2 planes here.
So if you don't want a sore heind-quarters, avoid the P40B. If you're uber like Storch is

fly it all the time to make things challenging.
My $0.02 (USD) -- as usual unsolicited and unnecessary, but I'm working and bored right now.