I use a Blackhawk CQC Serpa for a belt holster.
I have a Falco shoulder holster as well. It's a very, very well made holster for only ~80USD but they don't import into the US anymore (supposedly because the dollar is weak compared to the euro).
I don't OC a whole lot (maybe once or twice a week). I'll be using the shoulder holster if it ever gets cold . Freaking auburn weather is cold one day, super-hot the next.
For CC I have a C-Tac from Comp-Tac. Great holster. It doesn't conceal as well as my old homemade IWB, but it's much safer.
If I didn't have a pistol permit I'd use a thigh holster in the winter to stay OC. I find thigh holsters to be very uncomfortable, however, and shoulder holsters to be most comfortable