Will be in town in 10 days, and would like to treat a friend to a special fine dining experience (she treated me to Tru in Chicago a while back, and I would like to return the favor). I've looked a bit online and found some places that looked potentially interesting (Citronelle, 1789, Obelisk, Galileo), but would be interested in personal, up-to-date recommendations from DC chowhounds, since I don't know any of these places. Am partial to french, but type is not really important as long as it's interesting and inventive (and delicious, of course). Formal is fine, but hopefully not too uptight/snobby. Price not really an issue. Any thoughts appreciated !