Having stayed at the FS twice with young children I can assure you that it is kid friendly. I'm sure the Ritz is good too, but at the Four Seasons you also have use of Mandalays river & beach wave pool (which has a min height requirment). I posted a very detailed and long trip report which is now in archives. I've never quite learned how to post links here, but you can find it under my username. I think its part 3 or 4 from that trip report. I can't wait to return to the FS.