Gibsons
Lifer
And by then the Germans had lost most of their best pilots. The later ME-109 models were probably superior dogfighters compared to the P-51. We just sent them in numbers the Germans couldn't match flown by pilots that the Germans couldn't match by that point in the war. The Battle of Britain did a number on the Luftwaffe, they lost a lot of equipment and a huge number of their A-list fighter pilots.
The later 109s could climb, but they had pretty high wing loading, so turning wasn't always in the 109s favor, iirc (the higher the alt the better the 51 did). The 51 was better in a dive. Also, the 109 was noted for having really poor sight lines for the pilot, vs. a D's bubble canopy, hard to put a number on that. I'd guess this matters more for inexperienced pilots.
Then of course, some lw pilots were stuck in the 2 engined Me's, pretty hopelessly outmatched. And of course a million different versions of the fw 190, some of which were very good.