I am a little late on the subject, but here I am. I find shooting sub gauge shot guns more fun and challenging and give you a since of accomplishment when you fill your game bag. I started with a 20 gauge Ibar, bought a AYA xxvbl in 12 and used it for ever on everything then while living in Alaska I picked up a 28 gauge Rizzine and find it to be my go too gun. Then ordered a Aya#1 in 28 2 sets of barrels. Which I use for wood cock and grouse and dove.
But so that you know I am not a full blown snob as one may label one to be I just picked up a CSMC RBL in 20 and I can, wait to carry it afield.