What you guys need to do is break the war into years.
In 1941 very large numbers of Soviet aircraft were lost while on the ground or due to desperate tactics attempting to protect ground troops.
By 1943 the situation has changed with air superiority beginning to shift in Soviet favour, but with a massive increase in anti-aircraft guns on both sides.
In 1945 Germany is producing a tremendous number of aircraft (eg. look at bf-109 production in 1939-43 vs. 1944-1945) and a very large number of these aircraft are being destroyed on the ground, being given to very poorly trained pilots or being slaughtered while attempting to intercept allied bomber fleets.
So, if you want to compare Soviet and Western Ally effectiveness, then it would be could to study casualty rate in 1943 when Germany the situation was more comparable on both fronts.
But tallying up the total number of aircraft produced on each side during the war (especially when some of the late war German figures may only exist on paper), isn't going to cut it.
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