I took the in between route, driving:
Rigid Industries D2 LED Light - Driving
Normally we are either in the suck of some canyon or "screaming" down a fire road so the floods or spot won't really do us any justice in those cases as we want to see what is on the side of the road as well as down it as far as we can. If you compare the plots of the flood and the driving you will see that width wise they are pretty close but on range the driving is just a tad better. Out here in the desert on moonless nights, it is dark, talking coal-miner butthole dark, so I opted for a little more range vice spread.
Guess the best scenario would be, spots on the windshield and floods on the bumper. Wouldn't want the floods on the windshield due to possible hood glare.
BTW: "screaming" down the dirt roads for us is considered to be when the auto door locks engage. lol....