My first choice would be a pair of Stainless Steel 2nd Gens followed by the 2nd Gen Colt 1977 U.S. Cavalry Commemorative - pair of 1860 Armies, accessories, shoulder stock in a nice case.
But, to quote Hawg Haggen:
As far as quality goes they're both about the same now. Uberti is a lil more authentic looking as they don't have their name plastered on the side of the barrel but Pietta is the best bang for the buck.
The 1860s that I shoot are a pair of Pietta Lawman Model 1860s - half fluted cylinders, polymer grips - that work pretty good, and look pretty good too.
Fingers (Show Me MO smoke) McGee - AKA Man of Many Colts - Alter ego of Diabolical Ken; SASS Regulator 28564-L-TG; Rangemaster and stage writer extraordinaire; Frontiersman, Pistoleer, NRA Endowment Life, NMLRA, SAF, CCRKBA, STORM 327, SV115; Charter member, Central Ozarks Western Shooters
Cynic: A blackguard whose faulty vision see things as they are, not as they should be. Ambrose Bierce