my sisters and I, plus boyfriends and husbands, all love BB over TL. We always felt there were more "adult"-like slides at BB, meaning steeper and faster, we also felt like there was more to keep us busy, we always got bored quickly at TL. I have always recommended friends with kids to go to TL where the slides are slower, and more relaxed versus steep. Yes, BB has the kids ski-patrol, but unless that is all they do all day, TL still has more toddler friendly attractions, while still accommodating older ones. We hold PAP so we go to waterparks often and always choose BB. My friends, also PAP holders, who have little ones, always choose TL for their kids.
Take a look at the maps for each park, if I remember correctly, they'll give you the stats for each attraction and then you may be able to better judge what will work for your family.
We did try a cabana once, and found it was a great way to escape the crowds at the busiest times, but other than that, didn't use it enough to warrant the cost. Disney is great about spraying down the sidewalks to keep feet cool and strategically planting fake and live foliage to keep things shaded.
If this isn't something you get to do often, DEFINITELY take a waterproof camera, whichever park you go to, you'll want to take pictures. THIS IS NOT a wet n' wild type park, this is Disney.
