Huumm- "best Guns" hey-- OK, why did Limey gun scribe Gough Thomas rate the Model 12 Winchester so highly=in function and in appearance as well-= ditto Steve Bodio-- Winchester was never "in the double gun market" in their early years- when they offered the ugly lever actioned shotguns in 10 and 12 bore-- They imported the doubles they then sold here in America..
Both the Browning Superposed and the Winchester M21 were developed in answer to the thought of reducing shotgun magazine capacity in re: waterfowling and excessive bag limits-- John Olin liked the M21- and he was the main reason WRA kept it in production after Olin bought the Co. in the 1930's--
Are Parkers the best of the American made boxlock doubles? Hard to answer, but I'm more of a mind like the late Michael McIntosh-- I vote for the A.H. Fox-- RWTF
