I'm a big fan of SOG (and esp. their customer service -- yay Ron!), but I must put in a good word for the Gerber A/F folder.
I would recommend, however, the A/F COVERT folder instead of the Combat ... ATS-34 steel, and a bit more convenient size (IMHO). I got a decent edge on it with my friend's sharpener (and I'm *far* from proficient at sharpening), it's comfortable in my hand. Further, the Covert (I'm not sure about the Combat) has an extra locking system that physically blocks the liner lock from disengaging unintentionally. I have not spine-whacked it yet, but it looks to stand up to some pretty good abuse!
Just my two cents ... YMMV. You probably can't go wrong with either one, truthfully.