Hurricanes were tough, but not in all parts. Much like the P-38. Mostly tough - had holes in its wings too, but of course, hit the right part, the plane comes apart.
I'd say the P-47. Bob Johnson's plane was hit so hard - cannon shells and all - a 190 emptied all its shells out on Johnson's Juggernaut and it still got home. Next, the IL-2's quite strong too.