That question has no standard answer. Keystone factory is in Goshen, IN and Cruiser factory is in LaGrange County, IN so they are different factories and while they are both owned by Thor, the company has a history of allowing the different companies that they buy to operate pretty much independently and to compete with each other. The best thing for you to do is to do a comparison between the two keeping check lists and examining for quality issues of each and then also compare prices. If they are being sold by different dealers then the dealership may well do better in pricing and also in customer support. Very often, the dealer is the key to the buying process.. Other than holding and water tanks capacity, what are the main differences?