We love blizzard beach! Typhoon Lagoon is definately more shaded, but my kids loved the tikes peak area at BB. My older son and my dh also prefer BB for all the slides. I love the lazy river and the family raft ride at BB much better than the one at TL. The family raft at TL is more of a soaker, going under waterfalls etc... It scared my kids to get that dumped on. I have seen many little ones crying when they got off the TL family raft. The BB family raft is much longer and fun! The best thing is that you can take the chair lift up to the top. What fun!!! At TL you have to carry and roll the big family raft, what a pain!!!
I love the caribbean music and atmosphere much better a blizzard beach. Typhoon lagoon is quieter and more shaded so some people like that better. You can't go wrong at either park. They are both awesome!