I park hop when I stay on property and it works well. HS is a half day park for me so hit that early go back to the room for lunch, swimming whatever then off to another park later. The problem with HS is I've seen all the shows so have the kids and simply no one wants to watch them again. I like wandering around AK so that's a pretty full day but Epcot is easily done in a half day. It also has to do with what park has extra hours, MK open till 1 AM means will be doing MK at night and I actually prefer night time in MK. When on property I always go back to the room in the afternoon BTW.
Epcot is easily done in a half day? It is almost always two days for us.
Just curious, how to you do Epcot in a half day? Do you skip World Showcase? the live entertainment, shows, movies, shops?
To each his own of course, but we could, and have one trip when we stayed at Beach Club, spent every day of a full week's trip at Epcot. Of course we spent lots of time that week at Stormalong Bay and the Boardwalk as well.