boardgames

Ooo tough choice! I'd go with either Prosperity or Dark Ages, for complete opposite reasons.

Prosperity has a lot more support for "big" plays (big money, big actions, big engines), along with platinums and colonies, so it can be a lot of fun to get up to much more nonsense than usual.

Dark Ages on the other hand, lends itself to more grindy, clever engines. The themes of trash value, as well as low-cost stuff and ruins, really lets you get into the mud and grind a pile of dirt until it miraculously creates gold. The addition of shelters to replace the starting estates is really fun too, and gives the starting deck a little more oomph and utility.

Back to the wall, I guess I'd pick Dark Ages, as I love me a battle of attrition. But either of these are great, and tbh any of the original expansions are wonderful! (I can't give an opinion on the new age expansions since I own none of them)