The original poster asked for recommendations as to what his first black powder revolver should be. That isn't a "simple question" to answer at all, due to a host of many different factors that must be explained in order to give the OP a comprehensive answer that can enable him to have enough knowledge from the answer for him to make his best decision of what BP revolver he should buy first.
"This is my Remy and this is my Colt. Remy loads easy and topstrap strong, Colt balances better and never feels wrong. A repro black powder revolver gun, they smoke and shoot lead and give me much fun. I can't figure out which one I like better, they're both fine revolvers that fit in my leather".
"To be sure of hitting the target, shoot first and call whatever you hit the target".