Benelli has quite the fan club these days. Never handled one.

I've put many thousands of rounds downrange through an Ithaca Model 37
Been around quite a few 870's

The venerable Model 12 is a fan favorite.

Always thought of Mossberg as cheap gun, but they are making inroads.

BPS always seemed like a clunky Model 37 knock off.

Winchester 1300 is unremarkable and cheap feeling, IMO.

All the pumps in this list have earned good reps. Some have better genetics.
http://hunting.about.com/od/shotgun/tp/top_pump_shotguns.htm

The only one to avoid, that is mentioned in passing, is the Model 97 because of it's propensity for accidental discharge.
It's a wall hanger.
Model 12 cured the 97's shortcomings.