Like them both for different reasons. Both have good slides and a lazy river. Plenty of seating and shade at each if you get there at the right time. I think it gets down to theme and I think BB offers the young children more.
TL:
Shark Reef
Super Powerful Wave Pool
Lush Tropical Landscaping
Adult Atmosphere
BB:
Fun Cartoon Atmosphere
Family Raft Ride
Great Kiddie and Under 10 Areas (great design and size)
Wave Pool is calmer, if you want to bob more (also better for young kids)