realskiers

Considering how many times I have seen my carbon barred/seatposted bikes go tomahawking down the mountain without me, I don't think you need to be too worried about durability if you choose a quality product. I've also seen plenty of broken aluminum components and the last bars I broke were titanium (ouch), so just because it's metal doesn't mean it's stronger. F-35s have a full carbon airframe and are designed to land on aircraft carriers every day for 50 years.

A few years back Bike magazine (the German one) did one of their many tests on carbon bars, and it was convincing enough to make me ride Race Face carbon bars, they were significantly better than the competition. Other brands I would run for sure are Easton and Answer. For the seatpost, either get a Thomson or get a dropper post of some kind. Every bike should have a dropper, but if not, get a Thomson.