Much would depend on what season you're going to be there. If it's not a busy time of year, you may not need to stay onsite for FOTL. We went this past Jan. and never had a problem with lines.
Best tip I got from these boards if you're not staying onsite is to arrive before the park opens, do the big headline rides first thing, then catch everything else. Parks will start to fill up around 11 or 12. A day at US is not the day to sleep in!!
Agree with Immelman- this is not Disney, but a whole other experience. And a good one at that. We spent one day at each park which gave us enough time to enjoy everything.
Yes there's many fast thrill rides, but there's also much to do for those who don't do the rollercoasters. We had our 3 kids (11,7,3)with us, and there was something for all of them to enjoy.
Pack change of clothing and try to go when it's a warmer day, as many of the rides and attractions will get you wet. When a sign says you may get wet, it's not a joke!!
Don't pass by the curious george attraction just because your children are older. Past the water "town" area, there's a two level nerf ball area where the kids can shoot air cannons at those below, large cages full of balls drop down every 4 minutes and all sorts of other things. I think my older ones had more fun at this than the little one.
Spiderman and MUMMY were my 7yo son's favorite rides. Along with the talking/squirting fountain.
You can bring small, soft , collapsiable(sp?) coolers into the parks, despite all the warning signs in the parking lot and walkway to park
Purchase tixs ahead of time.
Check out
www.IOAcentral.com , especially Barry Backwater's Barstool reports on what to see with kids, along with threads here at DIS.
Everyone's Favorite rides-MUMMY, Spiderman, Bilge rat barges, Men In Black Jurassic Park River Adventure
My favorite-Hulk coaster. I was the only in the family that went on!! It is a roller coaster in every sense of the word, and ranks right up there with any that I've ridden at Cedar Point. Intense!!!
So-so rides/attractions-Poseidon's Fury, Back to the Future(you'll get banged around on this one) , Earthquake was good , but the preshow was boring. ET adventure. Jimmy Neutron-go on only if your kids are really into this. Jaws-very predictable
Only place we ate onsite was counter services which were alright.