That is a very beautiful bike.
My Lynskey, V brake with Koolstop Salmon pads on front, disc on rear. I find that the disc is much better in wet than the rim brake. But dry conditions, both about the same.
That said, there is a very tall steep hill that I have ridden down a few times, the disc was fading rather badly towards the bottom, rim brake not fading at all. That was in dry conditions.