Depends on the holster. Most, I like zero cant for AIWB or 3:00 OWB. Between 10 and 15 degrees of cant for strongside IWB, I don't remember the exact number... whatever Dark Star Gear uses as their "normal" cant.
I might try a negative cant holster for AIWB, like the 5 Shot Leather SME.
I've been using mostly Kydex lately (Dark Star Gear, Custom Carry Concepts, Comp-Tac, or JM Custom), though I do still love leather.
The CQB-Elite rides in a Sharkskin CC convertible holster.
DSG owb/iwb kit
Comp-tac (competition holster)... pretty bad picture for the first one. Marginally better with the second.
JM Custom AIWB
I had decent pictures of my other holsters. I'll have to see if I can find them.