I like them all for different reasons, but for me I think I'd have to go with Coronado Springs. I love the space, the theme, and the Dig Site (is that the name of the pool?)!!
It's been years since I've been to CBR but I loved Old Port Royale and the tropical colors throughout the resort.
And, of course the beignets and the Sassagoula boat ride at POFQ.