I've stayed at CR & WL.
For little ones, WL is the best. We, including our 4yo dd really loved it.
Its the smallest of the deluxes. It's 1 building, so you don't have to worry abt running from building to building in the rain to get your coffee, or like.
It has 2 pools, main, quiet (which really is quiet), plus a kiddie pool. There are 3 hottubs for the grownups. There is a nice beach w/ a playground. (on the sand, so you don't have to worry abt them getting hurt.)
Whispering Canyons is a very family friendly resturant. They have stick horse races for the kids every hour. Your kids won't have a problem sitting still! There is just to much to do/look at.
The transportation is excellent. There are 2 boat lines. The larger one (you can roll your stroller on) goes WL/FW/MK. The smaller one (you do have to fold your stroller) goes WL/FW/CR. (It's very easy to go to Chef Mickeys at CR or Trails End at FW (excellent, inexpensive buffet next to Hoo Dee Doo). There is also a small petting zoo at FW and pony rides ($3, closed toe shoe required). It's a nice low key break for the little ones from the big parks.