After hunting pheasants over a good pointer, I became a 28 ga fan. I have a no-frills Ugartechea in 28 ga, IC and mod choked, double triggers, straight English stock. I found the 28 ga to be deadly, was long as I didn't shoot birds beyond 40 yards. It seems to punch well above its weight class. I just use the 3/4 oz #6 shot.
I liked the 28 so much I bought the Benelli Ultralight in 28 ga 2 years ago. When I get my kids and grandkids together for an informal clay pigeon busting season, they all want to shoot the Benelli. They have multiple shotguns available to choose from; 12, 16, 20, and for ridiculously fun time, a 10 ga Browning Gold.
With the IC choke tube, it is quick to the target and deadly.