A good car that has potential is the Duratrax BX buggy. It has aluminum threaded shock bodies, and a pretty good stance. It is a good car but still designed more for bashing, so it's durable.
Some other good choices are the Team Assocaited RC10B4 and the Team Losi XXX-BK2. The BK2 and the Factory Team B4 are kits, but Associated offers a RTR version. I don't think Losi offers a RTR XXX-B but you can always get one off the for sale forum, and if that doesn't work eBay is bound to have one.
The undergod of the bunch is the Traxxas Bandit. Mine is pretty good, but it takes A LOT
of work to make them into something worth driving on a competative level. Check it out at www.TeamPlatinumRacing.com/Bandit.html