keep it within, Paris, Caesars, Bellagio, Aria, Cosmo, Park Mgm, or Mgm grand. everything after that becomes more like a 45 min walk each way with you having to go through casino's. I don't particularly like walking outside the area between aria to planet hollywood to the marriott to get to your hotel. lots of severe homelessness (severe mental), and if its past 11pm the escorts will be around as well. So depending if you have family or just you and your wife will have an impact on that as well.
I have yet to find anything i particularly craved at Planet Hollywood, or NYNY which is why I left them off the list. If you have a more specified food you are interested in i would gladly help.