RE: Whats more durabale buggy,truggy or Monster Truck???
Monster trucks are the toughest out of these three. The twin vertical plate chassis design monster trucks will be the most durable trucks; but they handle like a bath tub. Revo is a very nice race oriented monster truck that could challenge any truggy, but I hat to say that a buggy will still have more sprint and handling than the Revo (unless the buggy is an absolute turd of a design).
I personally run Savages and they are tough as nails. Cen also makes a great monster truck, the 7.7 (i cant remember the model name). Warhead is also a tough truck. All three of these trucks I have in mind are TVP chassis designed trucks.