My thoughts were that my next bike would have disks. They stop well and the rims don't wear out. It seems that's not so compatible with drop bars or with tourers. I'd need a more rigid fork so losing some of the comfort perhaps, and they may interfere with the rack at the back. I've seen touring tandems with huge rear disks and ridden as a cycle responder on a mountain bike with lots of load, so is that a problem?
My current experience of Mini-V and Cantilever with drop bars isn't so good either. I hope that with better quality pads on them they'll stop me this winter, having found myself barely stopping on time when it rained a week or so ago. The cycle responder bikes can stop quickly, even very fully loaded.
So what's better for brakes on a tourer?