Are you the only adult or is DH going ,too? I would seriously say that you will probably want to split up with the teen and one parent going one way and the adult with the toddlers going another at least for part of each day. There are lots of classic attractions that you can all go on together but the teen is going to want to do the coasters,tower of terror,etc. and other things the little ones cant go on. Or maybe, depending on park hours when you go, someone could go out at night for EMH with the teen while the little kids and parent go back to the hotel for the night.