Most Jeepers would be happy talk with you about their Jeeps and tell you why they picked the setup they picked.
Unfortunately, that's something I typically find to be a problem. Most people buy what they buy based on what their friends tell them to buy or what a sales rep convinces them to buy and, I find that most people will swear by what they buy if only because they've chose to spend their hard earned money on it. After all, you'd have to be a moron to spend money on something that was subpar, right? This is why I recommend that you "just" go for a ride so that you can determine what "you" like and don't like. The only other way to know is to test out a myriad of kits and unless you're a guy like me, that's not easy for most people to do.
Another good idea is to check out companies that are based close to where you like to run trails at. I'm a western US guy, so like parts made by companies they test their stuff in Moab, on the Rubicon, and on other trails in the western US.
Plenty of non Western US companies make good stuff. I just chooses to buy from places close to me, because I feel they make the best stuff for the kind of trails I like to run.
Personally, I think that most companies try their hardest to make kits that will work well on any terrain rather than region specific. In this case, RK is an east coast company but, there are plenty of guys who still run their stuff out west and are happy with it. Likewise, a company like EVO is a west coast company but, lots of folks run their stuff back east and with good results too. But, that's just my opinion.