I'd stay with an aluminum wheel that has a simple, polished outer edge.
The inside can be black, but if the outside edge is black, they are gonna look raggedy after a few trail rides in rough terrain, since a jeep wheel will get scratched/gouged on the outside edge.
Paint, chrome, powdercoat or any coating will get scratched off that outside edge. A straight aluminum outer edge will get scratched up too, but when you step back from it, it's still the same color, so it looks good.
We've recently picked up the Ion Alloy wheels and I like those a lot. Cool new wheel styles and they are very reasonably priced...
The steel wheels are cheaper, but we won't ever run them again because a fairly high percentage of them are out of round- right out of the box!
A wheel like that won't balance properly, and bigger, MT tires are hard enough to balance as is.
The steelies just have a "cheap" look to them too- JMO.
Backspacing is correctly described in jeeper99's post.
It is very important to make sure the backspacing of your particular wheel is appropriate for your tire size and lift. The smaller the number, the wider your stance will be.
The taller your lift and or tire combo, the less backspacing (wider stance) you should have to maintain room for the tires to steer and to keep the jeep stable with it's higher COG.
A word on the 16" Moab wheels. They look nice, but I wouldn't recommend them very often. If you wanna run the stock 245-16's that came on a rubi, and don't mind the harder ride of a load range "E" tire, go for it.
If you wanna run 33's, the backspacing isn't optimum at all.
16" tires are more expensive than 15's & you'll only find load range "D" or "E" tires in the larger sizes, instead of the load range "C" tires that a jeep should have.
(My 1ton dodge dually diesel truck *7,000lbs* has load range E tires on it.)
Heavier tires don't give the good ride quality or the aired down traction that a load range C tire will.
These reasons are why there are so many Moab rims on other non-rubicons out there. Most of those guys are going to a good 15" rim.
Wheels & tires are cheaper than 16's, you can find the correct backspacing you need for your rig and the tire choices in the proper load range are vast.
