center city probably the best- might be able to get a better rate at some hotels at airport- but not as much to do down that- can't walk anywhere- King of Prussia will be crowded this time of year with mall traffic- possble- but be a little more careful of LE in kop v philadelphia

Consider coming out to Plymouth Meeting. Close enough to KOP that the gentlemen there can make it out but away from the Christmas craziness and LE heat that is there.