I like Comp-tac in Kydex. I have a couple of the Infidel IWB holsters and like them alot. I'm not a paddle fan and would lean the plain Belt Holster for OWB.

Comp-Tac

The Raven Phantom looks like a sweet OWB holster and gets good reviews, but I haven't tried one myself yet. I think the wait on them is long at the moment.

Raven

OWB goes to the BlackHawk Serpa for me.

My carry work goes to the IWB clip model from this company...

The Holster Store

This is the best $30.00 you'll ever spend. I've had mine now for about 2 years and it looks brand new. This outfit in Florida makes a holster every bit as good as the top brands, including Galco, Milt Sparks, Bianchi, you name it.
Their stitching is tops and the form and fit are excellent.
I was a little hesitant about the clip-style holster until I got this one. I've never had it come loose while drawing and reholstering is a one-hand operation. Excellent comfort too.

Those guys are worth buying a pistol just to fit their holsters.

Great link. They're either using Cuban immigrant labor, or selling their holsters at cost to build up their name. Those are crazy prices for USA made holsters.

Lot of worthwhile stuff out there, some good ones have been mentioned. I don't use a holster much outside of competition and work, but I do use a few kydex ones for fullsize carry. Most of the time I carry my LCP in pocket or tucked in my waistband. I prefer not to have a retention lock, like the serpas; I haven't had any problems with my pistols falling out of the sqeeze-fit kind, but I have had issues drawing from holsters with locks.