I'm going to go against the trend here, and say Schumacher Havoc. You'd need to make yourself a custom motor mount to electrify it, but it's built like Fort Knox on wheels. Seriously, there is no tougher RC out of the box. Downside is that it's RWD, but if you want a truck that'll take a real mashing then it's gotta be the Havoc IMO. Just doesn't break.
Of course, building a totally custom machine could be awesome too, if you do it right.
