There really isn't a shotgun I've met that I don't like

, and I regularly shoot a Beretta over/under (682) at targets, but side-by's just love me

.
Bernie, like you, there's a passel of scatterguns in the vaults, in all actions, even a 20 ga. Charles Daly O/U made by Miroku...imagine that. Unfortunately the only 800 yd shots made in these parts are with police lasers (yeah, they're that hungry for revenue

). And with a .375...that's a lotta hold-over. Good on you - the mount belongs on the wall. PA permits rifle hunting in counties to the west of me, but it's generally still pretty short (<250 yds) shooting due to the woods. An old 8mm Mauser with my handloads is just fine for deer there.
Dave, you should shoot whatever fits you best - and it doesn't matter what that may be. Take it out and use it, 'cause that's some of the best therapy anybody can have.
If there is a favorite, I guess it would be......uh......I dunno. I enjoy the hell out of all of 'em; AR's, Model 700's, O/u's, side-by's, single-shots, pumps, autos, whatever. On any given day, it seems one will stand out more and that's the one that I'll take.
-Roger