People who have disc brakes seem to really like them. I've only test-ridden disc brake bikes, so I'm not able to directly compare, but I do feel that the disadvantages of rim brakes are vastly overstated. Most rim brakes come with mediocre pads, but after a $15 pad replacement will brake just fine in all conditions. It remains the road-tire traction that restricts my braking ability, not the brake. I ride winter and summer - v-brakes on the winter bike, cantis on the summer bike - and have had no problems, through adjusting to eliminate squeal is kind of a PITA.