after having both a hybrid and a road bike, i say road bike. i got one which had braze ons as i like to use a rack. it is much faster than the hybrid - however i am now thinking for my next bike i am going to get a road bike / cyclocross with disc brakes - my hybrid has discs and i really notice the difference in power in the rain.
also i love drop bars now - much better than flat bars in the wind.