We were at Universal Studios...the crowds were up a bit but not too crazy. Simpsons was 30-40 minutes, MIB was 45, Twister was 10, Jaws was 5, Jimmy Neutron was 10, Mummy was 10. We didn't go into IOA, but my sister & her family did. They had never been to WWOHP before and it was very busy she said. FJ was around 60 minutes, and overall, from what she said, I think IOA was busier than Universal Studios.
Hope this helps..have fun!