My husband & I were just there in November for a dog show (Rhodesian Ridgeback national specialty). We arrived a few days early to enjoy being tourists. We bought a 3-day pass to use between the two Universal parks.
We went to each park for one day (you really need a full day to be able to experience it all!) and went back to our favorite park on the third day to relive our favorites.
We stayed @ the LaQuinta nearby. There are actually a few of them (EVERYTHING repeats every couple of blocks in that area, because of all the tourists!) The one we stayed at specifically was on International Dr North. A friend @ the same event we attended stayed at the La Quinta on Major Blvd.
Both are in nice areas, offer free breakfast, WiFi & are kids/pets friendly. Both are also within walking distance to Universal studios, or you can take the complimentary shuttle. (Walking requires crossing a couple of major streets).
Personaly, I LOVE La Quinta. Nice hotel, nice amenties, friendly staff, & the price point is just right. I know the hotel on International Drive has a Junior suite (we got that room) which has a kitchenette (fridge/microwave), king bed & a sofa that pulls out to a full bed. But you might prefer 2 adjoining rooms (king for you & hubby, 2 queen/full for the kids)
In the park, we did 2 days in Islands of Adventure & one day @ Universal Studios. There are more rides @ Islands, & more "shows" at Studios. The Harry Potter ____@____.com is my most important tip - When you go into Hogwarts for the Forbidden Journey ride (cannot miss! It's just like flying a broom!), go to the line for single riders. They'll get you on the ride super quick - we waited at most 10 minutes or so, when the regular line was over 1 hour long. You may not ride on the exact same car, but you don't see/interact with each other when the ride takes place anyway. We did this & ran back through 3x to ride - all in less time that it would have taken waiting in the normal line!
If you like coasters (who doesn't?) Harry Potter has a Dragon challenge - 2 different coasters, & the Hulk coaster is pretty intense.
Spiderman was good, and the Popeye's Bilge Rat barge is great on a hot day.
At Studios, make sure to go to the Horror Make up show. It is hilarious! Very interactive with the audience, & great reveals on how they "made that happen" in the movies.
Despicable Me, Men in Black & Simpsons are a "must see" ride attraction. They do a good job of keeping you entertained while you wait, too.
We tend not to eat at the parks (way too expensive!) But do make sure to order a pumpkin juice @ Harry Potters (don't bother paying more for the take-home mug, you'll just hate dragging it around all day)
There are restaurants at the entrance of the two parks, or you can probably pack something light in a bag to take in with you. Also, leaving to get somethign to eat & then coming back is an option if you say close.
At night, there is an amazing mini-golf, 2 sceneries. We did the Sci-Fi, so funny!!
And if you & your husband want to get away for a romantic dinner for 2, the Churrascaria (Brazillian steakhouse) is out of this world. I've been to some locally that were highly rated, none compare to the one @ Universal! (beware, it IS pricey, might not want to take the kids)
We did get approached @ the parks to see if we wanted to take a survey (I did, got $25 in cash for 1 hour of my time) or attend a time-share presentation. We did, they give a hard sell, we stuck to our guns & said "no" But the presentation was a couple days after when we were @ the park... & they give you $100 Universal Visa card to spend in the meantime (if you don't show up for the presentation, they charge your credit card, which they take the info of just to have on file). So we used that to pay for our expensive, romantic dinner. =-)
Anyway, tons of options to have fun. I'd say overall, get a 3 day pass, budget your money on the hotel & dine affordably to get the most bang for your buck during your vacation. Have a blast!! T.