If I'm not mistaken, we are talking about the tank busting capabilities of the different aircraft available during WW2... The Stuka had been around since 1938 in a dive bomber role... Not a tank busting role...
When the Stuka finally started blasting away russian tanks, their philosphy had changed... They flew low to the ground, albeit not very fast... They removed dive brakes and associated hardware that made it famous during the earlier part of the war...
Keep in mind how the battlefield operated during these latter parts of the war... Furious armoured attacks and counterattacks... There really was no clear owner of the skies in a air-superiority role... The 87G-1 2 flew off dirt roads and such, and were called upon in decisive breakouts and on the spot emergencies...
Air superiority was NOT a factor in the tank busting role of the Stuka 87G during the western assault... There really was no such thing as air superiority on this type of fast moving, move and countermove, battlefield...
The records are sorta sketchy concerning the # of tank busting 87G's that were lost to groundfire vs. enemy air action... Obviously, the # lost to AA was very , very high...
But... Remeber how they operated these machines... Fly in low, and either a rear on attack or side on... If u did get shot down by AA, and alot of them did, u usually ended up in ur own lines.. And because the Suka was such a well designed, study aircraft, the pilots usually survived, walked back to their airfields, climbed into another plane, and went right back up....
Rudel was one such man... Probably the greatest pilot that has everflown in the skies...