I find the thoughts of ramjb very questionable.
1) If the soviets were so lacking at high altitudes, why didn't germans fight them there? Probably because there was no one to fight.
2) What was the effective range of those B17, B29 raids? I guess Moscow was out of their reach. Not talking about Ural at all. And try to think about bombers without support of P51s.
3) Kill ratios were pretty balanced since La7 and Yak3 were introduced. Also pilot training was much better than in 1942 at Stalingrad. I heard that some went to combat missions with less than 4 flight hours.
I recommend reading
http://en.wikipedia.org/wiki/Lavochkin_La-7
Only 115 La-7s were lost in air combat
and
http://en.wikipedia.org/wiki/Yakovlev_Yak-3.
Consequently, the Luftwaffe issued an order to "avoid combat with Yak fighters without an oil cooler under the nose and with an inclined aerial mast below 5000 m"
4) Allies didn't face the best german pilots since BoB. Also germany itself was poorly defended by minor Luftwaffe forces. Making conclusions based on fights when luftwaffe was outnumbered even worse than on the eastern front is not helping either.
5) The soviets had high altitude fighter planes. Mig 3 had been around since 1941. And they had maybe 3 000 of them.