Hi,
I agree with Granard concerning the convenient location and comfort of the Disneyland Hotel but it is the most expensive. This hotel does have more Characters during the day than the other Disney hotels, and no time tickets for breakfast which is hot and cold buffet.
The New York is a very nice hotel as well, but very different theming, being 1930's Manhattan art deco. Also has hot & cold buffet breakfast in either Parkside Diner or Manhattan restaurants. You have to book breakfast timeslots on arrival, but they are not strict about this, so it does not matter if you are late.
I have written two detailed reviews with photos of the HNY recently, so have a read of those which should help. The link for the earlier one is at the bottom of this one.
www.tripadvisor.co.uk/ShowUserReviews-g226865-d262678-r119909114-Disney_s_Hotel_New_York-Marne_la_Vallee_Seine_et_Marne_Ile_de_France.html
The HNY is the only hotel where everything is on the ground floor so you only have to use a lift if your room is on an upper floor. The theming is not as appealing for kids as some of the other hotels as this was built as a more adult option to the DLH, having a large conference centre. The swimming pool is also deep, with no kids pool or shallow end.
The Sequoia Lodge has nice cosy National Park theming, built in wood and stone, with rooms in either the main building or 5 lodge buildings. Rooms here are currently being refurbished with subtle Bambi theming. This hotel has a comfortable bar/ lounge with sofas and open fire in winter months. This hotel is next to the New York, so only a few more mins walk.
The New York, Sequoia and Newport Bay are all built beside Lake Disney, so all have rooms with lake view for a supplement. They also have free shuttle bus every 10 mins to the stops by Chessy railway station for guests who don't wish to walk to the parks through the Village.
You can book dinner in any of the Disney hotels, or use their bars / lounges, so are not limited to the one you are staying in.
As Granard says, we are always happy to help on the TA DLP/ MLV forums. I pop in here when I have time, but as DE on the TA forum that has my priority.
www.tripadvisor.co.uk/ShowForum-g2079053-i21935-Disneyland_Paris_Marne_la_Vallee_Seine_et_Marne_Ile_de_France.html