I like my Oracles (bright, plug and play, super easy to aim while installed), though I have a dead spot in both halos after a 3 or 4 winters. Oh, that whole LED vs Halogen in the snow thing? I never had either ice up, but I have some KC halogen/fogs on my bumper in case they ever do.
Access is restricted/gated at a certain point, but there are companies that will drive you out to go dip in the water over summer if you want.
Fuel is normally fine along the way—both gas and diesel—as many people drive to the north slope for work.
Denali Highway (Highway 8, not Parks...