DBL00BK,
If most the folks here were just " shooters" you could ask them their favorite shotgun gauge and it might be straight forward. HOWEVER, since most the folks here are hunters it is only natural for them to qualify their preferences according to " what its going to be used for." It is key to formulate the " thread question" carefully before launching a thread. Even so, a lively thread quickly takes on a life of its own and ceases in rather short order to be the " property" of the originator.
With that said, waterfowl hunting used to be my favorite and I like the 12 gauge magnum (Rem 1100) for " jump shooting" ducks and the 10 gauges for blind shooting geese (Old Ithaca Mag 10 for on the wing and a double barrel with buckshoot

for cripples down and trying to get away (4 in a blind, get into a flock, its seldom all clean kills).
Spring turkey appeals a lot in order to put some balance into the hunting year, don' t know which gauge or gun I' d use for that.
Hmmm, Could start a whole new " discussion" here.... but here goes,
Never Go Undergunned,
EKM