Ehm Crumpp:
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Crumpp: the more you peek into the BoB, - the more amazing it gets! Promise
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Not really IMHO. Hardly any original research left on that subject, AFAIK. Many of the worlds major air forces have throughly covered it. It is referenced in many a doctrine on defense."
Well, it seems that you still miss some points. The major points in comparing the BoB to the later airwar over Germany are not exactly the order of battle, "aircraft to aircraft". The very heavy weighting factors are the distances and time within radar covered enemy airspace and the enormous amount of flak mounted in the Reich.
As for defence of the UK, attackers could be expected anywhere (Bombers and 110's), - that's why FC had many a unit in odd places. But there was only one option for the 109, - the very south-east.
Anyway, I have some BoB statistics from Chris Shores to put into the pot

On the 10th of August he lists 805 servicable 109's, the WHOLE of FC mounting 708-764 servicable aircraft in the same period on a daily basis.
11th group (South-east) mounts to his countings some 21 squadron, 10th (South-West i.e. Cornwall, S-Wales etc.) has 9, 12th (Midlands and N-Wales) has 15, 13th (Scotland) has 14.
It was the 11th that bore the brunt of the fight most of the time with some help from the 10th, and some for the 12th, - the 12th didn't really kick in properly untill the LW went inland. (oh, you know, all the big wing debates and so).
He lists 16 RAF squadrons with 6 or less victories, while the heavy shooters cross the 100 and the 16th from the top has 70. So you can really see that there were many indeed that saw little to none of the fight.