Current LED technology is pretty good. They will be bright. I would still prefer HIDs or halogen for driving or fog lights because I think they have a better light pattern, and they don't look as funny.
Also, LEDs and HIDs have about the same lumens/watt, the best LEDs on the market are better, but only by 10% or so, they're in the same ballpark. Although with HIDs you have to hide the ballast somewhere, and they tend to make an audible buzz.
Also, I'm pretty sure there are some better looking LED lights on the market that are made for motorcycles.