Have you been comparing the LEDs that are little more than parking lamps, the ones with large COBs on them? They are rubbish.
A decent LED of the last couple of generations is a wonderful thing, and I've been using them gratefully in unlit back roads for the past couple of years. While I don't believe the utter bullshit claims about their lumens output from the makers, I can honestly say the light thrown onto the road it at least twice as much as the halogens they replaced.
My personal preference is for the copper-braid cooled ones, as I can fit them in just about any headlamp shell and don't need to worry about how long a little cooling fan will last.
Last pair I bought were made by NiteEye, via ebay. Of course, they're probably ripoffs of someone else but they work well and reliably so far.
One tremendously good thing about them is; if each lamp only takes 25 W or so, on my elderly bikes, I am now able to run twin headlights without straining the charging system - and that means a total of four times the amount of light going down the road.