My most used? A 20 OE L C Smith choked IC/M that I picked up at the last Pintail Point Vintagers. It's my go-to gun for all unland bird hunting, sporting clays, and skeet. the "hardest used" is a 391 Xtrema for the rough conditions in the duck/goose blind and spring gobblers. Never misses a beat and really took a toll on the water pigeons last Friday.