Well, I've always been really picky when it comes to off-road lighting...both on my Quadzilla and on my XJ. On my Quadzilla (Suzuki LT-500 quad), I had a pair of Cibie Super Oscars that were just unbelieveable. One driving beam pattern and one fog at first, but I soon switched to having both driving beams with 55W bulbs. Only disadvantage to speak of was that when my riding buddies and I went on night rides at the Glamis dunes, they always wanted me to ride at the back of the pack so they could all see so much better being bathed in light from my Cibies (they all went the cheap way with their Cepek and Super OffRoader lights...and regretted doing so after seeing my lights work)!!
When not on my quad, the Cibies were on the front bumper of my XJ - mounted in the same holes the factory fog lights used to be in. I just plugged 'em into the factory wiring and they were amazing! Unfortunately, I am now without them since I sold them along with my quad (the buyer wouldn't buy the quad without the lights!), and am now considering a new set of big driving lights to replace 'em. Being that I've also had VERY good experiences with the Hella lights I have on my roof-mounted light bar (4 Jumbo 220's facing forward and 2 550FF's, one facing left and one facing right), I'm having a hard time deciding on getting another pair of Super Oscars or going with Hella Black Magics or maybe Rallye 3000s...but I know enough to stay with these two brands for certain.
I did find a VERY helpful and informative resource for off-road lighting (recreational, racing and even RALLY spec!) that will help anyone looking to see better at night...Susquehanna MotorSports. They mainly sell Hella lights, but their site has tons of information about beam types, bulb types, wiring and "how to choose" kind of stuff. Check them out...if for nothing else besides some good information.
Hella lighting beam types explained here
Hella fog and driving lights and prices
Here's a link for Cibie lights and specs for ya, too!
http://www.cibieusa.com/cibie_aux_lighting.htm
I also swapped my stock headlights over to Hellas, as well...with 55W/75W lo/hi beam halogen bulbs. BIG improvement over the "a-bic-lighter-could-do-better" ones that the factory put in the early XJs...although I am about to upgrade the stock headlight wiring, which should make them even better. If not, I might just invest in converting to HIDs.
Oh, in case you're wondering...the lighting setup I used to have looked like this -
Seems to be missing something now, though...(I Photoshop'ed in the Cibies using an older pic I had :shhh: )
Hope all that helps people out.
Pyro