Not sure what your budget is for lights, but if you can swing a higher price up front, those Rigid LED lights are pretty outrageous. You can mount one 20" bar across the front of the roof, and combined with your headlights, will light up everything in front of you, near or far. For regular rounds, I believe floods are best on the bumper (otherwise they'll light up your hood and mess up your night-vision). Long-range driving lamps can go in either spot, I should think. Fogs should definitely be on the bumper, as low as reasonable without risking damage. If you're just doing a pair, I'd go with the bumper--easier to run the wiring, and no glare.