As one German pilot of the B of B was heard to remark in more recent times If the whole British fighter force had been Hurricanes Germany would have won but if it had been all Spitfires then the Luftwaffe would have lost a lot more aircraft and pilots than they did. Also if you look at the victories per aircraft lost by squadron it comes out at an average of 5.5:1 for Hurricane squadrons against 7.4 for Spitfire squadrons.