For when I want nice and taking a girl, I say Encore then Venezzia at Venetian in that order. When I am looking to just have some fun with friends I like a few, Treasure Island (favorite bar is there), Caesars etc. When I want to go cheap and gamble cheap and have a great time, Monte Carlo I think is the nicest of the cheap end, always have a nice enough stay, and do my partying and dining elsewhere.