For me, Park Hoppers are a total waste of money. I kind of understand why people use them, esp. if you're on a shorter trip, but if you have the time, IMO it just adds stress to remember what time we have to jump from one park to another to meet a reservation, and making sure we carve out enough time for transport there. I like to stay in one place, soak it up, and eat there too. I don't think I'd ever spend the money on it.
I would agree if AK and Studios had more to offer, but as it is any trip where anyone in the group wants one of those parks we can never find enough in them to waste the whole day.