I'm a huge fan of 1911s in leather rigs. My personal experience is Avenger style holsters SOMETIMES (depend on make) don't conceal as well as a pancake, but that's one guy's experience.
If you're looking for an "heirloom" holster to go with your 1911, JRC or Sparks would be the first places I'd go. If you're looking for a holster that's going to last you a lifetime of hard use, I'd go Kramer horsehide. For a faster, less expensive option, Mitch Rosen's Express line stuff is pretty great - their 5JR is what I'm daily carrying my Commanders in right now.