I have used tons of different types and brands and from what I have seen short of going to HID's the H4 housing with some good quality bulbs is your best choice for headlights. I used the Hella H4 housings with Piaa Xtreme White bulbs, the combo is so good I find I rarely use my driving lights. If you go this route you my want to use a less costly bulb though the piaa's are not cheep, but well worth the cost I have found. There are some bulbs that will give the the same white light (I hate the yellow stock light) and are almost as good as as the piaa's for considerably less.