I agree with PPs in that it's more of a romantic restaurant. If you're looking for signature dining, Narcoossee's is fun on the water and if you time it right you can see the EWP or Wishes... or both. California Grill is also fun because it's so high up. After those 2, I'd say Hollywood Brown Derby and Flying Fish are more kid-entertaining... as much as they can be.
Don't get me wrong, Artist Point is good, very good, but if your children have a short attention span, which most do, they may act up and get bored while there.
Also, if you were looking to eat in the WL, Whispering Canyon Cafe is VERY fun and just a few steps away.