MGSPlzzy......get a Winchester 21; you won't regret it, especially for the purposes you outlined....use Bismuth for ducks and light loads for doves and sporting clays. Don't worry about F&F chokes; as one of the greatest shotgunners ever told me..."you're either on 'em, or you ain't" - Robert (Uncle Bob)Brister
But I warn you....getting a 21 is like eating potato chips; you won't stop with just one. I convinced my long time shooting buddy to get a no. 5 engraved VR trap gun with 32" barrels for pigeon shooting....he now owns 30 Winchester model 21's. Another 4 have passed through my door since this pic was taken. BTW - get a copy of Schwing's book on the Winchester 21 for a reference if you seriously start looking at them. Best of luck.
