Blizzard has the better play area for little kids. They both have good regular slides, but Blizzard also has some thrill slides in addition to the regular ones.
They both have lazy rivers that are nearly identical, but Blizzard has this sneezing guy that kids tend to love. It's just one small section of the loop and is a voice of a guy saying things like, "I've got a cold in my nose...ah...ah...achoo!" and then water gets spurted out. Typhoon has spurting water on the lazy river, too, but no voice. I hate that sneezing guy, lol, but kids get a real kick out of it.
They both have beaches, bars, donuts, fast food and gift shops. Blizzard has the better gift shop.
Typhoon has a "swim with a shark" thing. Blizzard doesn't.
They both have wave pools, but they're different. The biggest difference is that Typhoon's wave pool is bigger and has one big wave that comes through and knocks everyone around. They do that every 90 seconds or whatever for a period of time. They also do periods of the smaller, "bobbing" waves. Blizzard only does the smaller, bobbing waves.
At Blizzard, you can sit on an inner tube in the wave pool. You dont have to, but you can. Typhoon doesn't allow those in the wave pool.
So, the biggest differences are they kid play area (Blizzard), the "swim with a shark" thing (Typhoon), the thrill slides (Blizzard) and the thrill wave (Typhoon.)
Again, don't make the mistake of thinking that Blizzard has thrill slides ONLY. They don't. They have them in addition to the other slides. People tend to think that since Blizzard has thrill slides, that's all they have. Don't make that mistake.
I've been noticing a trend that makes Blizzard out as the park that isn't good for kids and it just couldn't be further from the truth.
Like someone else said, if you want to go mini-golfing after the water park, Blizzard is the place to do that! I don't know how many people would have the energy to go golfing after a day in a water park, but you could easily do it there. They're all on the same grounds.
Good luck deciding!!