Dedicated tank buster? Give us the IL-2 if the decision is based on pure production volume. Otherwise, I'll take an Hs-129. BTW, if you goto the site GATT listed for the book (Which is excellent), you should also buy their Me-262 book series. It is the best series on the 1Swallow' I have seen. They also have an excellent soft-cover series on the history of Luftwaffe Paint Schemes, but they also give you an analysis of the entire Luftwaffe history and plane types in the various squadrons and operations.
P.S.- Does anyone have the link for that new series of books just (The first Volume is out) released on the Aerial Warfare on the eastern front? `Red Star/Iron Cross' I think is the name of the series. I misplaced the link and want to order the first volume. Thanks.