I love them both and it really comes down to what you want your trip to be. If you want to devote at least a week to Disney, or if swimming and sunshine is a very important part of your trip, I would go to WDW.
If you want to devote 3 days, or have children under a mature 8, or if you want to combine it with the west/CA experience go for DLR.
Either way you will have fun !
Funny you should say that, that DL is more for 8 years or younger children...
Because my mom took me (16 at the time), my brother (14 at the time) and my sister (10 at the time) last year, our first Disney trip ever.
We went for 6 days, and loved it. It was our favourite vacation we have ever done (and I have been to Egypt, Costa Rica, all over Europe, Canada and the USA. We loved it so much we are going back for 7 days.
I don't think it is so much about age as it is about the type of person you are... If you are willing to immerse yourself in Disney magic and just be a kid, you will love it. If you are rushing and stressed and always looking for a huge thrill, you could get bored.
Interesting to hear different takes on the situation
