this is just going to be a quick little $0.02 since Im so busy at work, but a small break is welcome....
Elation has awesome fixtures in my opinion, though, they're some of the more expensive ones.
Martin would be a very close second (if not #1). Again, $$$
I don't have a top 5.... my
stage is lit almost exclusively with
tungsten source, but the ColorKinetics that i use for washes works as well as they should.
Watch for Flickering... most newer products have anti-flicker technology. Especially important if your event will be filmed/broadcast. Older and used LEDs don't necessarily have this safeguard.
You can find
LED washes with awesome
Lumen output, but I'd rather spend 1/4 of the money and get the same amount of light from a
conventional source. Cheaper LEDs just aren't as bright, well.... saturated, lets put it that way.
Biggest Error with LEDs ---- Cool, New, and Expensive Technology will not create your design for you. Lighting Art and
Theatre have been done for hundreds of years on shoestrings... buying new toys won't automatically mean your show will turn out beautiful. Create a concept, define atmosphere, and chose instrumentation accordingly.... Don't start by wanting to use an
instrument and then look for ways to incorporate it. Let your design determine the products to use. And as with every art, there are 100+ ways to achieve the aesthetic, LEDs just happen to be the newest.