LED lights, once you get away from the toys, are many times brighter than the equivalent incandescent bulb type.
Forget about the ones with three or four LEDs. The real performers use one incredibly bright one.
The question is, what do you want it to do?
If strictly for a work light, then you need one of the cheaper ones, and you want it with the orange peel reflector.
If you want one for looking for problems or walking out at night, get one of the better Fenixes or a Lumapower.
They use digital switching so you can have different amounts of light without wasting battery life.
I have a Lumapower Lumahunter model, that uses two 123 lithium cells.
In "turbo" mode, I can light up the tops of pine trees 400 yards away across my field.
And it will give me about an hour and a half of light at full brightness. Then, it gives me a few more hours of lessor brightness using a digital step-up circuit.
Or, I can set it on the lowest mode, and it will run for days.
And this in a flashlight that will fit in your pocket.
Go here,
http://www.batteryjunction.com
and check out the Fenix and Lumapower models.
Stay away from SureFire.
I have a couple, and they are great lights, but both the other ones eat them up for brightness, for less than half the price.
All these lights use the 123 lithium batteries. They run about 4 to 5 dollars in stores. Order them from this outfit in bulk, and pay less than a dollar or so.
I recommend the Panasonics.
For a cheaper, smaller light that uses one AA battery but still cranks out amazing light for its size, try this one.
http://www.batteryjunction.com/proton.html
J.