I'm planning to go with family (Me, Mother, Bro) to IOA/US. Universal Studios is more prefered, but we love the Hulk & the coasters at IOA .. Popeye and JP: River Adv is great too. We've been to US, twice or three times (once at HHN) & to IOA about five times. I'm seeking a bit of advice how to plan out a trip to both, I've never really planned but i want to so we can use our time well..we're also going to attend Mardi Gras that evening (Saturday) as we're going the weekend of Feb 26..here's a list of rides I've decided should be good, pls give advice 
Saturday (Feb 26)
Universal Studios
MIB
Back to the Future
Shrek 4-D
Revenge of the Mummy
Jaws
T2
Earthquake
Twister
Sunday (Feb 27)
Islands of Adventures
Popeye (if it isn't cold)
Spider-Man
JP River Adv (if it isn't cold)
Dueling Dragon
the Hulk

Saturday (Feb 26)
Universal Studios
MIB
Back to the Future
Shrek 4-D
Revenge of the Mummy
Jaws
T2
Earthquake
Twister
Sunday (Feb 27)
Islands of Adventures
Popeye (if it isn't cold)
Spider-Man
JP River Adv (if it isn't cold)
Dueling Dragon
the Hulk