DeSantis Cozy Partner IWB. It's leather and it's really comfy. I haven't used the SideArmor in 6 months. Those plastic holsters just don't offer the comfort of leather.
I also own a Galco Concealable and F.L.E.T.C.H. OWB that are very nice, but I am more comfortable with IWB carry. I also have quality holsters from Milt Sparks and Bianchi.
I bought a Gould & Goodrich and I don't like it at all. Build quality and comfort is not as good as the others I have mentioned.
If you think people are choosy about their firearm selections, it's not nearly as subjective as one's preference of gunleather. It's a very personal choice based on your mental and physical comfort levels. You will likely end up with a box of holsters that you've tried and didn't like. Hey, that reminds me, do you wanna' buy a barely used Gould & Goodrich holster?