The main ruleset that I will be playing with for Old West is "Legends of The Old West" by Warhammer Historical. This is a "skirmish" style of game play where each posse has a maximum of 12-15 miniatures (not including "Hired Guns"). LoTOW gameplay is very similiar to the other two games mentioned above, LotR and LoTHS. These smaller style skirmish games is what I enjoy playing most now, and the low model count helps in getting them painted.
Well sit back and relax and I hope you enjoy the wagon ride out west.