If I had to sum up highlights from our trips to Universal Studios, I would include the rides: 'Kongfrontation', 'Earthquake', 'Back To The Future', 'E.T'., 'Jaws', 'MIB Alien Attack' Also the 'Twister', 'Terminator 2 3-D', and 'Alfred HItchcock' attractions. The 'Beetle Juice Graveyard Revue' is interesting to see if you're a fan.
As far as Sea World goes it would be: the 'Shamu Show', 'Terrors of the Deep', 'Penguin Encounter', 'Clyde and Seamore', 'Kraken' (if you're into rollercoasters), 'Journey To Atlantis', the 'Cirque' show, 'Dolphin Fest', and the 'Manatees'.
I hope you enjoy Universal and Sea World; they are both truly fantastic!