I second the vote for the Shrockworks bumper. It is on my short list of possible bumpers. Another possibility is Fab Fours
http://www.fabfours.com/Jeep%20Rear%20Bumpers%201997%20-%202006%20Jeep%20YJ%20TJ%20LJ%20Rear%20Bumper%20with%20Tire%20Carrier%20Y1050 It is a little pricey but has the coverage and sturdiness I'm looking for. A local shop is a dealer for them and I've seen them in person. They are stout. One thing to keep in mind though is that even though they have the receiver hitch built in, they are technically not rated for towing. It would cost the manufacturer way to much to have them tested and take out the liability insurance needed to claim them as rated for towing. But if you do plan to tow with a bumper rather than a separate hitch, make sure you get one with frame tie in brackets (or add other aftermarket ones). Otherwise the bumper only mounts to the rear crossmember and could tweak the frame under load. Also remember that a SWB TJ is only rated to tow 2000 pounds. I've read horror stories of guys trying to tow more and it was very difficult to control the load because of the short wheelbase. I've got an Unlimited so my tow rating is 3500 pounds. Hope this helps.
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David
Bel Air,Md
2003 KJ Patriot Blue Sport w/mods R.I.P.
2005 Wrangler Unlimited not so stock
L.O.S.T. #082670
http://www.cardomain.com/ride/803306
http://www.cardomain.com/ride/2399643
More mods planned than money.
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"Roads, where we're going we don't need roads."