Hoser,
My preferences for chokes is highly dependent on:
Gauge, type of dog, particular dog, terrain, type of bird, bird habit at the time you happen to be hunting. Since I don't shoot targets in competition, I will defer to others for that. I simply grab a gun that I want to shoot for enjoyment on clays.
If I were ordering a new gun with a 2bbl set and had no particular focus on any of the criteria or activities mentioned, I'd get barrels choked to cover one end to the other. That would likely be the commonly seen f/m and m/ic set. It' easy to open them up, much harder to tighten them.
