I'm judging board games by their cover
Edit: Twilight Struggle should really be in the "Practical/does its job/unspired" row.
Edit #2: Ok, I actually looked at the latest edition of Concordia and the cover feels much better. The pale white lady looked so odd to me on their earlier editions. The current edition also has been polished up much better and it should really be in the "Great" tier now.