CDDA is certainly a much more enjoyable game than Dwarf Fortress, but I have to admire the audacity of something that attempts to simulate thousands of years of history in a world, which you can step into any time, alongside the social structures of entire civilisations. Perhaps the only thing more amazing than DF's scope is the fact that it exists.
I loved playing CDDA in ASCII mode, but Dwarf Fortress is absolutely impenetrable to me, so I never had the chance to dive in properly. I'm waiting for the graphical version to be released, the screenshots I've seen of the new UI are incredible, I can't wait to buy it when it's out.