My family has a four night stopover in Tokyo next week en route to Manila. I currently have reservations booked at both the Park Hyatt Tokyo in Shinjuku and Hotel Nikko Tokyo on Odaiba island in Minato. I'm having a very hard time trying to decide which one to choose. We have two young kids, ages 4 and 1.

Shinjuku - Park Hyatt Tokyo
Pros:
- It's the Park Hyatt, need I say more?
- The ultimate room with a view
- Complimentary wi-fi
- English speaking hotel staff
- More of an authentic Tokyo experience?

Cons
- perhaps too busy an area to navigate with young kids in tow?
- a bit of a walk from Shinjuku Station


Odaiba - Hotel Nikko Tokyo
Pros:
- Less crazy than Shinjuku, although I hear it gets crowded on weekends
- Easy access to monorail line
- View of Tokyo Bay and Rainbow Bridge from hotel
- Legoland Discovery Center in walking distance
- Shuttle service to Tokyo Disneyland

Cons:
- Limited English spoken at hotel
- Fewer transportation options
- Limited access to wi-fi
- Hotel seems to nickel and dimes for extra services (wi-fi, pool, etc...)

Any suggestions?