Order of Universal parks when have 1 and 1/2 day

We will be arriving in the afternoon and will have the next day (with early admission) to do USF and IOA. Which park should we do first? (on the day we have just an afternoon/evening). Thanks!!

Do whatever one is more appealing to you - as it sounds like you are staying on site (early admission) - I would assume you also have front of the line access as well. I would just start going through all the attractions one at a time. I may also take Hogwarts one direction as it is a different experience each way. Then with Early admissiong - hit HP