We've got 1 daughter and we have been to Disney when she was 2, 4, 6, 8, 10, and 14 yrs old. Our last trip was this past Spring Break and she had a friend along with her.
We have always stayed at the Polynesian. It is on the monorail line. On the last 2 visits, we stayed in the Concierge sectin of the Polynesian. It is pricier, I know that, but the Concierge has a light breakfast, snacks, light lunch, light after noon snack, light dinner, dessert and drinks available at all times. Polynesian was great when daughter was small and we needed quick trips back to the hotel for naps, breaks, etc.
The Polynesian is great because we love the theme of the hotel, beach, boat launch to Magic Kingdom (hardly no wait), viewing fireworks at night, the luau is great, O'Hana has a nice character breakfast.
Grand Floridian is probably the nicest. It is more "clubbish" and quite honestly, a lot more older people there. We love it, nice restaurants but can sometimes be a little "stuffy". Stuffy is ok....we just want to chill and have fun while there. Floridian has a beach and the boat launch to MK as well.
Contemporary is the other hotel on the monorail line. THe monorail goes through it...pretty cool for kids. Chef Mickey has a good buffet for dinner and it is a Character dinner as well.
We fly and grab a cab from the airport to the hotel. There are benefits if you are on some od the Disney properties to have free transportation to and from the airport. We prefer no waiting, to grab a cab and go straight to our destination. Each way is about $80 with tip.
You don't need a car. Use the monorail and the buses. Polynesian is close to a main entrance/parking area and you can easily walk there.
We love Animal Kingdom. This last trip, we were able to get a semi private guided safari (10 people...3 adults and 7 children about 5-16 in age) and it was probably the best $$ we spent. We went off the trail of the regular safari and got to see some animals up very close. At one time, a giraffe had his head in the van. The guides are very knowledgable, they work with the animals and the children on this tour loved it.
Don't plan to see it all. Take your time to enjoy it and don't rush too much. I know I am forgetting something.
I manage all of our travel as in booking air, car, hotel, venues of entertainment. There are a lot of sites out there but you can get confused easily and end up including something you don't really need or want.
Call the WDW line and the representatives are very helpful in guiding you to events that might be more enjoyable for your family.
I do suggest the ticket that you purchase on day #1 and then it is good for any park, as many times as you go, any day until midnight of your checke out day. I think in reality, they are good about 7 days, as we were told upon checkout this last time.
I realize we vacation differently than a lot of people. When we go on vacation.....we don't go cheap.
HAVE FUN!!!! If you have any other questions, feel free to PM me.