Thanks for all the great suggestions! FWIW, DS is capable of pretty much any game he's ever tried. He is a shark for games with a superlong attention span. Considerations for us include length of game (under an hour is great--we only rarely have time for epic sessions) and whether it plays well with 2 or 3 as well as 4. Art and attractiveness/appealing aesthetics matter to DD, and she'll be his typical game partner. DD is not a fan, for instance, of Munchkin.