I currently have plans to stay 2 nights (visiting parks 2.5 days) at US/IOA (staying at HRH) and then 4 nights at Disney (BWV). After reading a little more about Harry Potter, I'm worried about (a) whether 2 nights will be enough and (b) whether Disney will be a letdown after Universal. We have those passes that are good for 7 days, but I know 7 would be overkill. Kids are 16, 13, and 6. We are WDW fans, have gone many, many times (big kids remember, youngest probably only remembers last trip when he was 4). We've only done Universal/IoA once when youngest was an infant. I know we'll all have fun, I'm just concerned now that I should maybe add another night at HRH and forego a night at Disney. One point---switching the order (doing Disney first, then Universal) isn't a great option for us since the start of our trip is over Columbus Day weekend and I worry that WDW is too busy on the holiday weekend to really enjoy. Any opinions or advice?