I have a four year old non verbal boy who is autistic.
He uses his iPad as an augmented speech device with the proloquo2go app, so he is never without his iPad for a second. I looked for hours and hours reading reviews and comments about different cases out there. After buying three different cases, the best one was the Griffin survivor. My son has dropped it sevral hundred times, and has even thrown it a couple, also he left it outside overnight in the pouring rain. When we found it the next morning it had about 5mm of water on it and half of it was in a puddle. No water damage!!! We live in Vancouver Canada, it rains alot and very hard! It has a thick rubber outside with a hard inside.
We started with the otterbox defender, it was a total waste of money. It always fell apart and offered no spill protection, also I wouldn't trust it would protect from drops...it's very flimsy!
We then tried the trident kraken 2 case. It is a cross between the outerbox and griffin case. It has a hard outside, like the outerbox and offers some spill protection like the griffin. The problem with the trident case is it has two plastic clasps that hold it together. They broke off in two weeks, now case is useless.
The otterbox and the trident had bombproof iPad 1 cases, I don't understand why they changed their design for the ipad2 case.
Hope this helps any parents who are looking but can't find any real answers.