Alsark
Noble
I'm not hugely fond of the Paradox model. I used to be okay with it but I think it has gotten a little out of hand. I've not played much Crusader Kings II, and I haven't played much Europa Universalis IV for awhile, but from following their forums and Steam reviews, I heard that they had a couple of really bad DLCs in a row that made Europa Universalis IV worse. So it seemed they were just popping out DLCs to make a buck rather than to make the game better. At this point I just run one expansion behind on Paradox DLCs because they come out so frequently and they always put the old ones on sale when a new DLC comes out.
I prefer an expansion approach, with some little content DLC here and there, as Civilization 5 had done. Although I didn't really think Civilization 5 was a very good game until Brave New World came out... but from the looks of the Civilization 6 previews, we're not nearly seeing the kind of content cuts that we saw between Civilization 4: Beyond the Sword and vanilla Civilization 5 that made Civ 5 feel so bare bones upon release. So it looks like, from what I've seen so far, that Civilization 6 will feel like a pretty complete game upon release (maybe not polished, but that's what patches are for), and then expansions can go above and beyond that... unlike Civ 5, that mostly just felt like it was catching up to Civ4: Beyond the Sword, in my opinion.
I prefer an expansion approach, with some little content DLC here and there, as Civilization 5 had done. Although I didn't really think Civilization 5 was a very good game until Brave New World came out... but from the looks of the Civilization 6 previews, we're not nearly seeing the kind of content cuts that we saw between Civilization 4: Beyond the Sword and vanilla Civilization 5 that made Civ 5 feel so bare bones upon release. So it looks like, from what I've seen so far, that Civilization 6 will feel like a pretty complete game upon release (maybe not polished, but that's what patches are for), and then expansions can go above and beyond that... unlike Civ 5, that mostly just felt like it was catching up to Civ4: Beyond the Sword, in my opinion.