Hi Denise,
Disney's Coronado Springs Resort is a lovely moderate resort at Walt Disney World. If your kids like water slides, then this is an excellent choice for your family. I stayed with my nephew at this resort during his first ever trip to Walt Disney World and we loved the Dig Site pool and slide. I was a big fan of the tasty treats in the Pepper Market food court too.
Because this is an expansive resort, I think it makes sense to request a room near El Centro, where most of the resort's amenities (gift shop, guest services desk, food court, etc.) are found. I highly recommend a room in either Casitas building one or Cabanas building nine, as these are closest to El Centro.
If your kids prefer a tamer (but still fun) water slide, take a look at
Disney's Port Orleans - French Quarter. This is the smallest of Disney's moderate resorts so nearly every room is close to French Quarter Square. Also, there's only one bus stop at this resort. I find that simplifies transportation to and from the parks.
If you need any additional advice as you are choosing between resorts, just let us know!
Best wishes,
Jill