$1000 on a tablet? Is there such thing as a $1000 tablet?! lol if you were on a budget I have a list of great ones, but for that money I just don't know. I would lean towards Android Tablets though. Although Apple has the extra battery life, Android is just simpler to use and more convenient.
This is all opinion based, but I'd recommend an Android, I've owned the same Android tablet for two years and have had no complaints. Just get an SD card to expand your memory capabilities.