If you're there with your partner, I recommend the Bellagio. With a gang of lads/girls I'd go for New York New York...it's very central, cheaper, and has a good mixture of bars/clubs plus you can easily get to the MGM Grand etc. The Hard Rock (although off Strip) is a great place to hang out and booze. For a nice meal out, I'd give Olives in the Bellagio a go.