Allow me to add my two cents worth.I like others have owned Parkers,Fox's, Ithaca's and Smith's. I have never owned a Lefever but a close friend has a late boxlock Lefever 20 gauge and the gun is simply wonderful. If I ever have an opportunity to acquire one I will be very seriously tempted. All the American guns have their strong points and weaknesses. I like the style and simplicity of the Fox gun and the adjust ability of the Lefever and we all know the Winchester 21 is hell for stout. But Parker is my love.
For me if I could only own one gun I think it would be a fairly light 16 gauge 1 frame graded gun with 28" barrels and a half pistol grip stock equipped with double triggers. I think it would be versatile enough for most anything I ask of it. The 1 frame would give me enough options on loads to put through it.
Wow! Thank God I can have more than one though....