I had just about pulled the trigger on a Sport but went a completely different route. In my research, the Sports have a wider frame, which in turn gave it a wider track than the normal models. Not really a big deal unless you are planning to buy aftermarket parts like bumpers, skid plates and such. With the frame being wider, most of these parts will not bolt on without new brackets or modifications. From what I can tell, the actual suspensions are the same so those parts interchange as far as lifts and such.
Good luck on your search.