Galco makes great holsters. My buddy has a Fletch for his P226 and its an excellent holster. You can't go wrong with either.
Now, I believe the Fletch has a thumb-break and the CM does not. That is up to personal opinion.
My opinion? If you're going to carry openly, then a thumb-break is a necessity. If you're just going to carry OWB with a jacket concealing the gun, then open top is good 2 go.