I'm somewhat new here but I'll throw in my .02 cents as far as the ZJ/WJ goes.
I had the opportunity to purchase either a 98 ZJ with the 5.2 or my 99 WJ with the 4.0. I work in an off road shop and my boss had both of them here, both he'd sell me for $1500, both with about the same mileage on them (I think the ZJ had 10k more on it). They both were in need of tires, and both had some cosmetic issues (what I'm trying to say is they were both in similar condition). The ZJ was in better shape, only thing wrong cosmetically was the driver's door had been swapped to a 93 Grand Wagoneer (has the wood decal) but was the same color white so with a heat gun and some soap and water I could pull the decal and have a good looking Jeep. The WJ had been in a small fender bender, requiring a hood, fender, bumper, headlight, and the plastic grille/headlight mount. I drove them both around, after pondering it for a few days went with the WJ. IMHO it was more comfortable and had better styling.
Now, what I've found after buying mine is this: the aftermarket support flat out sucks for the WJ. The more common manufacturers that make stuff for the ZJ don't for ours. The only plus I've found is what aftermarket there is made for ours, seems to be a lot better looking than the ZJ's (such as the protofab bumpers I'm going to get).
Although the off road capabilities is the same, the overall objective is harder to get to. My buddy has a 98 with a 4" RC lift, and he clears and wheels with 33x12.50's and can fully tuck the wheels up. My 99 with a 4" will barely clear 32x10.50's and even then I'm going to be rubbing on select locations. However, if you can get the quadra-drive, that's one thing the ZJ does not have. Went wheeling a few weeks ago with my buddy in his 98 and we ran into a WJ with the quadra-drive with just a BB and some 30" tires, and he was going up and around stuff we struggled with in the ZJ and open diff's.
Overall, I'm happy I went with the WJ, but I wish the aftermarket support would catch up. My work is a distributor of BDS/JKS/Zone/Fox and I called and asked if there was anything in the work's for a 6" LA kit for mine, to which there is not currently or (at least in the near future) anything foreseen to be done.
So to the OP, us giving you our opinions is going to lean you to the way we want you to go. If you listen to my opinion, the Limited with all it's features are useless on a Jeep. Who needs a sunroof or dual climate control, and the V8 in the WJ isn't worth the extra power vs gas mileage (my 4.0 is pretty stout for a 6 cylinder and I'm averaging 16-17 with a lot of freeway driving). But that's my opinion on what I wanted, but when it comes down to it, it's not about what I want. It's about what you want. From what I've seen, the 04's seem to have the best looks and have the bugs worked out, but that's about the only proven fact's out there. Everyone here has a different experience and view on their Jeeps, so us telling you how we see things isn't going to give you a proper perspective.