Err swap your top two on your list there. Hydraulic disc brakes are so much better at stopping than rim brakes, even in dry weather. I've got a set of the cheapest road discs (SRAM Apex) and some of the best rim brakes (Dura Ace) and its not even a comparison, the discs stop dramatically better. But you're probably right about the carbon clinchers, it does seem preferable to put heat from braking into the disc instead the rim when the rim could potentially soften from heat and allow the tire to blow off.

With that said, I tend to agree with Mr Froome. I can see where if you're riding and travelling a lot, its probably easy to ding a rotor and have to put up with a persistent *shing*shing*shing* sound. If I had to deal with that 30 hours a week I'd probably hate disc brakes too.