I'm looking to establish myself with a rental company as I will be renting not extremely often, but I plan on having some travel coming up as well. Some of my rentals would be to go to PA or head south to Virginia so I think Newark would be good for that. Other trips will be up into Connecticut, Mass, rest of New England. I checked Stamford and with the costco discount etc their prices tend to be about $12 higher per day than Newark and they have limited hours on the weekends for returns. I do not plan to use the rentals heavily in Manhattan as I like to avoid the city traffic, its more for getting out of the city that I need them.