by Kartigan
I have not played D2E (only a select few have at this point since the game has not been released to the general public yet).However I do play quite a lot of First Edition Descent (as well as some Claustraphobia) and have been avidly watching and reading all the previews, rules, etc. for 2E.
Based on my very limited knowledge I would say you'd definitely be ahead to stick with Claustraphobia for 2p dungeon crawling. Though Descent works fine for 2p, I think Claustraphobia is a much more interesting game for head to head play. Descent is definitely fun, but I believe is best in a group of people. Also I think even though 2E will be much faster than 1E, I still think it will be significantly longer (like 2-3 hours for quest) as opposed to Claustraphobia's 1 hour per quest.