Well for me.. I have both. both cars are very different. I use my VX for the street and grommed trails.. but if i do real 4 wheeling i use my TJ wrangler. But it is heavily modified. 4" lift, ranch rs9000, 33" thornbird and all. In my vx i have the lift kit, bfg at.... i gotta say after all the mods i have done with both cars..my Jeep is still a stronger for extreme off roading. it's the combination of short wheel base, suspension, 5spd that makes it work alot better...but for ralleying... i would use my vx...

1997 Jeep TJ Sahara, 4" trail master lift, rancho rs900, rs5000 steering stablizer, 33" thornbird, aftermarket exhaust, intake, header, custom fr and rear bumpers, tons of skid plates...
1999 vehicross, spring lift kit, sunroof, bfg at, intake, exhaust, interceptor, currently build a system consist of Alpine motorized screen, 10disc dvd changer, nakamichi sub, alpine amp, MB quards speakers.....