Well, from what ive read, the Hurricane performed better against the Luftwaffe fighters at the time than the Spitfire did, and i believe i read somewheres it achieved more kills during the battle than the spits.
so, you have the spit who performed better than the hurricane, but the hurricane performed the task set to both of them better than the spit.
idk, i just think there was alot of un-tapped potential in the hurricane. Would of loved to see a 4-6 .50 cal version.
It acquired more kills because there were simply more of them. Also, Fighter Command sent them to fight bombers while Spits dealed with the escorts. While it was still dangerous, shooting down bombers were much easier than dogfighting against a 109 or 110.