My first nitro stadium truck was the Rustler 2.5
The thing is super strong and doesn't brake like other RTR vehicles. I have replaced only the arms with new blue RPM arms other then that the thing has never had a bad day. If your wanting to bash its geared for that too, i use big truggy looking tires on mine, sure i need to switch the pinion/spur out for a little bit more torque but i love it.
The Jato is basicly identicle if you ask me but they built it more for a "on-road" feel, with the 2 speed transmision and the lower profile for higher speeds i don't think thats what your looking for. You want something you can bash in your "not quite yet finished track" that is overgrown and full of larger rocks and stuff.
anyhow thats my 2 cents, good luck either truck from Traxxas will server you fine.