I've been there 3 times :)
I've only been to Disneyland Paris, never to the U.S or Disney World.
I'm sure the one in Paris is still lovely! J'ai etudie francais pour 2 ans!
I can't compare because I've never been to the one in Florida. It's probably bigger with better rides and amusements, it always is. And since I was about 11 (I'm 20 this year), I can't remember it all that well.