LEDs have a few advantages but only one disadvantage over incandescent.
Pros: Strength and brightness while retaining good run time.
Cons: If you want to use any kind of night vision device, an LED emits no infrared radiation, so you cannot use an filter to block visible light.
However, with the recent release of the Vampire series from SF, the cons can be pretty much eliminated.
However, from your post, I can already tell the cons mean nothing. Buy an LED.
Like nzgunnie said, your lights only job is making sure you hit your target the first time.