The 3 that I am looking at are located:
Midtown West -7th Ave at 31st St. close to Penn station (where we will arrive from Washington DC)

Midtown - 50th St & 3rd Ave (close to United Nations on the tiny little map on their website)

Murray Hill (?) - 34th St & Lex Ave - not reallly close to anything as shown on the map

Any suggestions as to the best location?