Whether the Big Dummy is more versatile depends on your definition of versatility. The Mundo weighs significantly more in its "stock" state than a BD (39 lbs vs 55 lbs). Also, the stock build of the Mundo uses much lower quality parts than a spec BD, and it doesn't even include disc brakes (which would pretty much be a necessity if you were to try to carry the cargo that the Mundo is capable of). Also, the Big Dummy is certainly better suited to off-road or singletrack use.