I run both. My road hybrid running on 28c road slicks, and my fuji outland pro running deore with hydros and 1.75 slicjs. For reallly long rides with varied terrain I prefer the mtb for comfort and adaptibility. For shorter faster commutes hybrid is better. A hard tail mtb with decent lockable shocks and hydros running slicks is reallly a do anything bike. If I had to pick one it would be the mtb.