Like most - I find this hard to give a simple answer:

Good weather pheasant: Fox a-grade 12 30" mod/x-full
Bad weather pheasant: SKB 100 12 26" choke tubes
Good weather grouse: Ithaca Gr-3 12 30" sk/sk
Bad weather grouse: SKB 100 12
Good weather woodcock: Remington 1889 12 30" mod/full
Bad weather woodcock: SKB 100 12
Turkey: American Arms Turkey Special 26" 12 full/fuller(tubes)
Goose: AYA 10 32" F/F
Puddle ducks: SKB 100 12
Ducks over decoys: Parker VH 12 30"
Squirrels and doves: Arizaga .410 28"
Crows: Hopkins and Allen 8 gauge 36" choked (?)yep-it's F-U-N!

I guess I don't have a favorite. I use most of my doubles in the field throughout the year and the one's I don't take to the woods -shoot at least a couple of rounds of trap. If I don't use them, my wife might try an make me sell them.