Don, I use both types tractors regularly. While the Bobcat or "Skid Steer" type tractors are incredibly useful for many things, manuverability being just about at the top of the list, some things they don't do so great. As long as everything is flat, they work very well. They don't dig up hill very well. They have an awkward balance that will take some getting acustom to especially while loading a truck with heavy loads. They are easy to get stuck. Moving dirt from one area to another is where they really shine. Quick and fast. To answer your question I would put it like this. A tractor can typically dig better then a Bobcat, this is in part because of the reach and trememdous digging force that can be exerted on the bucket lip because of that reach. They are definitely harder to get stuck, Bobcats can dig a hole with its wheels fast and with a full load in the bucket find itself unable to move. If all I was doing was moving dirt and had a choice between using either one, the Bobcat would be my choice. If I was digging, working on slopes, working in wet conditions, needed greater reach (like when digging up a broken pipe) it would be a 4WD tractor. Rat...