I like my BPS if I don't have to carry it all day. I turned it into my turkey/deer shotgun.
I think the best pump for carrying in the field all day long is a Model 12 Winchester. For small game and stuff with thin hides, a 20 ga. Model 12 field model is about perfect. Some guys carry a 16, which is pretty fun if you want something different. Most, of course, carry a 12 which, if you get an early one, is wonderfully light. Even the older ones, while heavier than the early ones, are much much lighter than the guns being produced today.
I like the little corn cob forearm that the Model 12's had up to sometime after the war. My most-used shotgun is a 28" modified choke Model 12, 12 ga. but right behind it for a day of walking is the 28" modified choke 20 ga.
Own a piece of history - try a Model 12!