Great Wolf Lodge vs. Castaway Bay

I've been to Castaway Bay many times and I really enjoyed the water park and especially the water coaster. I was thinking about making my first trip to Great Wolf Lodge in april and I was wondering is it bigger than Castaway Bay and is it worth the price? Please share any experiences or opinions about Great Wolf Lodge. Thanks

I would personally check out Kalahari before Great Wolf, but that's just me.