Depends on the dress situation and what you think you shoot well.
Shooting a snubby is not as easy as a semi. Some folks find 45s are harder to shoot.
If you own all, might be fun to try them in a IDPA match or the like.
Personally, I alternate between a 642 when pocket carry is the mode and a 9mm Glock for belt. I have a 1911 which I shoot in matches but it's touch to big for comfortable carry here. Yes, I know all the carry holster variants and have a closet box full of such.
