I normally fly Continental to Houston, but fly Virgin to Orlando. I wish Virgin fly direct to Houston, but they don't. I think their meals are quite good as well. Most all airlines that fly transAtlantic have the little individual tv's.
Citrine, if you are flying into Orlando, I should warn you that after landing it's quite a process to get out of the Airport. It's good to be prepared if you have kiddies with you.
Once you get off the plane, you will go thru a security area where your carry on's are put thru the machine again, followed by passport control/immigration. There is a luggage pick up just past that. Once you collect your bags, you have to go to another security area where they take your bags again, and you then have to take the monorail to the main terminal to pick them up again.
The whole process took a hour an a half the last time we flew into Orlando, which was this time last year. After a 9 or 10 hour flight, it can be quite tiresome, especially for kids.
If you are going to DisneyWorld or Universal Studios, I am kind of an expert on them, (5 visits there in the last 18 months LOL) so if you want any tips, just let me know
Happy Traveling