Um? Shall we start throwing mud next?

Anyhow, I prefer road bikes for the road. It's not to say that MTBs are ill suited but the ride quality is better in a road bike IMHO. That and being a roadie...
Every tool has its purpose. While you can modify a MTB generally you would be better off with a road style bike on decent roads. There are plenty of instances where a MTB would be preferable on the road. Bad roads, snow, ice, etc

Ride what you want to ride.