In my opinion, eschew LEDs. I have the NR Evolution (not the Evolution Smart) which is a less expensive, brighter halogen with about 2.5 hours of run time.

Halogen is the ticket for compromise lighting (cost vs. performance). If you want the brightest you can get, then go HID. Personally, I'd go with a double halogen setup before I went HID because the halogen bulbs are a lot cheaper to replace if and when they burn out. Even HID burns out, and it's expensive to replace.