Seems like a half and half split in preference from the road warriors I know; with maybe a slight advantage to the touch pad. Granted that is the hardcore travel group which isn't the majority and I do very little coding or graphics anymore.
Right, I'm sure touchpads are great for that group. Wasn't trying to put down your preference, just speaking from a different crowd. Macbook touchpads are the best I've ever used, bar none.