AK is open 9-5 and USF & IOA 9-7
I would go to USF for the morning and then AK for the afternoon if you want to 2 park it
If you are staying onsite at Disney why not go to USF/IOA on Sunday and then take advantage of EMH on Monday at AK?
Also, are you taking advantage of the internet only purchase special Universal tickets:
https://tickets.universalstudios.com/USRG/us_store_secure2.jsp?merchant=UO
$94.95 for 5 days consecutive admission
Universal Bonus Pass
The Universal Bonus Pass gives you the flexibility of visiting Orlando's two best theme parks anytime during your vacation. This ticket is only available online.
Unlimited park-to-park access for 5 consecutive days, including first day of use
CityWalk Party Pass** to select live entertainment venues, for 5 consecutive days, including first day of use
Parking not included
Limit of six (6) tickets per purchase
Signature required on ticket and photo ID must be presented at front gate
**Not valid for separately ticketed concerts and special events. Some venues require 21 or older for admission. Proof of ID may be required. Additional restrictions may apply. Prices do not include tax and are subject to change without notice.
thanks
jaysue