Harrahs is probably the nicest casino but it is the one with the hotels across the street. Those shuttle busses do run continously and are not that bad. Other nice places to stay at, in order, are Gold Strike, Horseshoe, Hollywood. I get good comps from Fitzgeralds and Hollywood and never get anything from Harrahs or Horseshoe. I would avoid Ballys, Sams Town and Resorts just because I don't care for their casinos. If he has never been there before I would suggest Gold Strike since it is next to Horseshoe and Sheraton.