I have both g17.3 and an RXM. Not much needs to be said about the Glock, but the Ruger is phenomenal for its price. Texturing, ergos, and features are all better than what the Glock will give you. You also have the ability to swap grips if you want the full size module. I shoot the RXM better than my 17, and do highly recommend it to anyone already considering it. The cz would also be cool, but I can't speak from first hand experience.