I have a 13 Jku with 2.5 X factor RK kit and have no complaints. It is the latest version and the first thing I noticed were how massive the control arms are. Is that needed? Probably not... But that doesn't mean I dont enjoy the fact that I have stronger parts on it than the factory arms. I ended up getting a kit with all 8 arms due to the mileage. My jeep was already a couple years old, and I had it previously lifted with a rancho "kit" and then a rubicon express lift. With some wear on the factory joints, it was a toss up of rounding up some take off arms or just buy a kit with new arms. I am running fox res shocks, steer smarts tie rod and drag link, flat fenders, 37's and everything has performed as started. I have no had any problems with rear coils being wonky. I've had no issues with the front sway bar hitting coils (something I've read a few times online). Although it's an aftermarket drag link, I have not done a flip, and handling aka bumpsteer, isn't an issue, but I'm also a little less lift than op is looking to do. Personally, I do not think you would go wrong with anything you've listed so far. "Fan boys" are everywhere, just depends on what forum you are on, as to what brand gets the nod. To say that any of your options would be "bad" or "wrong" would be a stretch. The best part about my RK lift, was after it was installed, the top was down, and I was cruising the coast or headed to trail... In other words.... Pick one and go enjoy your choice! Instead of busting your own balls about is the "perfect" lift