I vote for the Horror Makeup Show. Alot of fun and something we do each trip! Haven't seen the Animal Actors yet but it sounds great.
We love MIB and ride it multiple times in a row (yes you can do that at Universal
We loved the Minions too, cute pre show and fun ride.
I guess I pretty much love it all, esp. HP lands which are the best of any park, IMO. You will have a ball
If you like HP, look into eating at the Three Broomsticks and the Leaky Cauldron. And watch the HP shows in both parks. And get frozen butterbeer and ice cream at Florian Fortescues.
Ripsaw Falls is one of my favorite log flumes. Very similar to Splash Mountain. Splash is much more detailed and better looking but think Ripsaw Falls is quicker paced and a little higher excitement level for that.
For the HP stuff I definitely recommend trying the frozen Butterbeer. Think it tastes even better than the regular. The Earl Grey ice cream at Floreans was really good too