I like the Single Stack Classic rules, which is essentially USPSA Limited 10 rules, and IDPA CDP equipment. Lots of running and gunning (and reloads . . .), but also "realistic" gear.
I've heard a rumor that there is a rumor that USPSA might make L10 a "Single Stack 1911" division. Just align the holster rules with Production, rather than Limited, and I get my wish.