I've owned two XJ's (one current, one sold) and currently own a WJ. The XJ's outwheel the WJ hands down, even with XJ open diffs vs WJ front true trac/rear quadradrive axles. Dunlop mud terrain's on the XJ, BFG KM2's on the WJ. The WJ is more comfortable and has more power (4.7L), but it's heavier than the XJ, longer wheel base, and I prefer the NV231/242 over my WJ's NV247 transfer case.
2004 WJ 4.7L, 1959 CJ-5, 1990 XJ Limited (sold), 1996 XJ (sold), 1989 YJ Wrangler 4.2L (Sold)