I've been searching for good SUV tires for a long time. I've tried a fair number and done a lot of reading on forums, Tirerack reviews, etc.
Living in the NW, my criteria is primarily excellent on-road dry AND wet performance (grip AND resistance to hydroplaning). Secondary criteria is good snow performance, and lastly decent (mild) off-road performance.
A long time back, (maybe the second set of tires for our '99 WJ), I picked between the Revo AT and the LTX M/S. From what I could tell at that point both were (and are) solid choices.
The result? I loved the Revo AT and have used them ever since (now Revo A/T 2). The WJ wore them for it's lifetime, and my wife's '08 Acura RDX has wore them since we brought it home and this fall our new '14 WK2 will wear them.
Each time I buy new tires I check to see if there is anything else out there that seems better for my criteria, but I've yet to have reason to switch.
Probably the reason I went with the Revo back then over the LTX was that I had used Bridgestone's S02 Pole Position dual compound tires on our other car. They were awesome tires in both the dry AND the wet (the latter being an important criteria for me living in the NW) and it made me a believer in Bridgestone's dual compound tech for superior grip in the wet. And the Revos were also dual compound tech from the same family and didn't disappoint.
From my perspective, the Revos seemed simply to have gripper rubber that other options I've tried which gave it the good on-road wet grip. They have a mild AT tread which gives decent performance on mild off-road terrain. Actually, to my eye, the Revo AT2 has a milder tread profile than the original AT (which I preferred), but it's still aggressive-ish.
They've worked very well in snow on both the WJ and the '08 RDX (which has a nice AWD system).
The primary limitation of the Revo AT2 is that the tread is only mildly aggressive, and you have to respect the limitation of how well the treads can clean in mud/snow but this is on par with most mild and even aggressive AT patterns, including the LTX.
I've heard a lot of good things about the LTX as well. From what I can tell, both are solid choices and it's a great dilemma to have.
As an aside, here are some random other tires I've tried:
Wrangler AT (admittedly, many, many years ago). Horrible tire IMO. Totally no grip in wet. Seemed to have a very hard rubber compound as far as I could tell.
Pirelli Scorpion AT. Decent tire, seemed pretty grippy, wore pretty fast tho. Better than the Wrangler by far, but not nearly as nice as the Revos. I think the ATR is the new version of this tire and similar to the Revo AT2, the new version has a slightly less aggressive tread.
Bridgestone S02/S03 (summer tire). Great tire on dry and wet using the dual compound tech. Tread pattern counter-indicates use in snow. Introduced me to dual compound rubber. Looks like they are up to S04 now.
Goodyear Eagle F1 Supercar - meh. They weren't horrible, but they weren't great either. Maybe these would be good summer tires if you didn't have rain? So far I've never met a Goodyear tire I've liked.
Continental ExtremeContact DWS (another dual compound tire). I *really* like these and they were I finally ended up for my '03 Infiniti G35 6MT Coupe that I just traded for the Jeep. These are grippy in dry and wet (again, good rubber tech IMO) and even do reasonably in light snow. Awesome tire for an all-season. Previously I'd swap between summer and winter tires on the G35, and with this tire I just wore them year-round. I also had a previous version of this tire previously and it was good but as good as the new DWS version. I would totally consider these for an on-road only Jeep.
'99 WJ/QD/V8/TowIV wearing (I think) Pirelli Scorpion ATs:
Revos on my wife's '08 Acura RDX :