I am sure various threads contain info on this comparison but I did not find one that is recent. I am not dedicated to one brand and admit I have a Jeep TJ Rubicon, and have had an XJ, WJ, and another TJ. I've had a 3rd Gen 4runner too I loved. I love Jeeps for what they can do in the woods. However, right now using a TJ as a DD is a pain, and/or I am just getting older and realize I never go off-roading as much as I daydream of doing so. I would rather have a smooth, quiet, cozy vehicle for the 98% of the time I am on the pavement. As it is right now parking is a nightmare, so I will need to dump my TJ then get into an SUV.
I was dead set on the 5th Gen (TP), rear locker, Toyota reliability, down the road if I am able to wheel more lots of lifts and aftermarket off road parts available. Well I hear someone mention getting 31mpg in a 4x4 Grand Cherokee. I am shocked at that kind of gas mileage. I did not dig too deep, but threads on Jeep forums about why some chose it over a 5th Gen are that it has more power, way better gas mileage, lower cost for comparable options, and much more comfortable interior. And this summer they are coming out with another Trailhawk edition that will have an improved suspension (but no locker).
So has anyone on here owned both perhaps? My biggest concern with a Grand Cherokee would be reliability, maybe not when it is brand new but 100k miles down the road. That is where the confidence with a Toyota comes in hopefully, my 3rd Gen 4runner had 170k miles on it when I sold it, and I would have driven it across country without hesitation. With my Jeeps it seems at 100k miles they nickle and dime you with all sorts of minor repairs. But I do appreciate power, interior comfort (I am a big guy), and with the gas prices in California 31mpg sounds pretty sweet.
A big factor will be what kind of deal I can get on either of them as well...