If y'all try to go to both... Try to stay at an affiliate hotel so you can get the early entry. If you don't, you are guaranteed massive crowds even during non busy time. Or at the least, be willing to separate your family to hit the single rider lines on forbidden journey. That saved massive amounts of time!!
The early entry was nice because we were able to experience Wizarding world with no crowds. It was really nice. And we finished both parks by 3. It was great. Gives you guys plenty of time to go back around and re-ride!
I don't really plan on going on Forbidden Journey, but thanks for the tip.