Hi!. My family and I are planning to go to Tokyo next April. We will be staying in the Shinjuku district for 4 nights and then will be transferring to Hilton Tokyo Bay Hotel for a 2 night stay. I would like to ask anybody out there what mode of transportation should we use, subway or railway and which one? My husband and I together with 2 children, 14 and 13 will be traveling with 3 luggages plus hand carried bags. What is the best way to travel with out much hassle?