Id carry what you shoot best with, not what looks like its going to be the easiest to carry. Why short yourself on something that you may really need to count on.
Its not hard to carry the full size guns, and they are generally easier to shoot well with than their smaller counterparts.
I normally carry a Glock 17, and often, a Glock 26 as well. I also carry a double reload for the 17, which also works in the 26. Im not big, and its never been a problem keeping it all out of sight, nor have they been in the way of normal daily activities.
Seems these days people consider their guns to be more of a fashion accessory and novelty than a tool. A cute little gun goes with things better, and isnt as much of an inconvenience I guess. Then again, I suppose its better than nothing.