I would say that a new emaxx with rpm arms and hubs, with a decent bl setup will be your best bet for a durable truck that can handle rough terain. You may also want to put al shock caps on it too. Otherwise it seems to be a tough truck.
The new Emaxx I saw at my local track did not impress me with its strength. The whole back end broke off after about 10min of driving. He over jumped the large jump on the track, landed flat, and the rear snapped off. I just don't think the plastic chassis can compare to the aluminum of a truggy or revo.