I like so many areas. When I go back now for 3 or 4 days for theater I have a favorite hotel on W. 44th St. between 5th and 6th that I like as it is small-ish and quiet and I can walk to see a couple of plays, stroll 5th Ave., window shop at Rockefeller Center(my first job out of college was in Rockefeller Ctr), maybe go to the Museum of Modern Art. I also like the Upper West Side just off Central Park. Also the Gramercy (sp?) Park area. And South Street Seaport.
And Greenwich Village. And on and on. I could live there again now as my son is grown and I am in good health and able to walk all over and take the subways, but I'd have to empty out the piggybank and that would cause me a great deal of anxiety and put retirement plans in turmoil.