Sorry, I totally disagree. I vote BB. So geared for the kids.
That age will love the Ski Patrol Area. Geared exactly for that age. Your 5 year old will love being able to do lots of fun, non-dare devil activity. The only kid area at TL is for the preschool and younger set. The family raft ride is awesome at BB. There are plenty of slides they can go on. My niece is 8 and she even rode down the second biggest slide. They LOVED it there. Still has a lazy river (equal at both) and the wave pool does not have killer waves so they won't need support to enjoy it.