EARLY SHOW OR LATE SHOW ?
Many of the shows have two performances per evening and to confuse you further many are at different times, for example KA has a 7pm and a 9.30pm show whereas Blue Man group has a 7pm and 10pm, then Jubilee has a 7.30 and 10.30 so obviously it's important to figure out which show is best for you particularly if you are making reservations for dinner.
If you plan on a relatively early night ( or you are jetlagged ) it's probably better to eat an early dinner in the hotel where your show is and then you should have a short walk from your restaurant to the theater, by the time the show is done it's probably close to 9pm, a few night caps and you could be ready to flake. If you are a night owl and plan on partying till dawn it's going to work out better to plan a dinner for 8 ish and head to a late show afterwards ( again we highly recommend choosing a restaurant in the same hotel as your show..don't make the mistake of thinking you can grab a cab after dinner and get to your show in time...it's a common mistake, cab lines are long and casinos are complicated, disorientating and huge, there will be long walks and you may miss your show )