I am going to outfit a new road/tour/commuter frame with hydraulic discs and am trying to decide what brand/model of disc brakes. The choices are Shimano LX or XT, Hayes 9, or Avid 5. I am leaning to the LX set up. Stopping power is probably equal for all so it is more an issue of reliability, easy or use and quality. I think the XT is probably costly overkill and I have heard that the 9's are maybe loosing a little quality control. Dont know much about the Avids and they not a strong contender.
Does the mountain bike community have any good ideas?