Well, the C'dale is a bit more camouflaged, if only in my mind. I know of a Raleigh Sojourn (similar to Portland) that was recently stolen...
I wouldn't mind riding a Portland but, it being a few hundred $ more, it would have to knock my socks off. I don't doubt the discs working better, but it wouldn't make me choose one bike over the other. I ride in the wet sometimes, but usually at a reduced pace for more reasons than just brake design. Our weather doesn't really demand them either
Just realized it would also be yet another bike with unique wheels for me. I'd like to be able to swap around if possible.