They are all similar in design and construction. I've cooked on a Carolina Grill. They are a solid unit.
I would look at the features you want on a grill, including total weight, cooking grate size, burner style, ease of cleaning, how it handels grease flow, etc. Then, I would look at service after the sale. Can you get the cooker back to the fabricator if something isn't quite right? Local might be a consideration.
[smilie=a_holyshit.gif] [smilie=a_doh.gif] SINNER!....burners?... ya gonna gas it to death?....
Find something with a seperate firebox and stay away from the gas chamber....
i have one of these http://www.wilmingtongrill.com/pig_cooker/
i wouldnt take a share in a gold mine for it. i love it. probably a little pricey compared to the others, but its an awsome grill. tim