I've been using Milt Sparks since 1988. Started with the original Summer Special for a Glock 17 and used it for over 20 years. It finally started showing it's age, so I bought a Summer Special II (for Glock 23) last year, and was finally able to get a Versa Max II (for Glock 26) this year. Fantastic quality and they last almost forever. Admittedly a long waiting period, but if you have a Glock or 1911, SS II's are available from Brownells, and VM II's available from Top Gun Supply (both are authorized dealers).
I've tried Bianchi and Galco leather holsters, but for me nothing compares to Milt Sparks. Cheated with a C-Tac Kydex IWB for about six months, but the SS II and VM II ended that.
Now waiting for my VM II for my Springfield XD 9mm SC. Ordered in March so hopefully 4-5 more months...