Meh... have never been all that impressed by Starbucks charred/burnt coffee.
For brewed coffee at WDW, the pressed pot Kona available at the Poly is our fave. I haven't tried the coffee at AKL yet, but have heard it is quite respectable also.
I need to admit that our family could be considered 'coffee snobs' though. We purchase select micro-lots of single origin coffee beans, custom roast them ourselves in very small batches for peak freshness, and only grind the minimum amount needed when we are ready to brew the next pressed pot. Home roasted coffees not only taste fantastic... but I can purchase a pound of top quality green beans (from most origins) for about the same price as a single cup of coffee from Starbucks.
When we travel, I will roast & grind about a week's worth of coffee in advance, package in air tight containers, then slip that and a smallish press pot into our luggage so we can brew good coffee in our resort room.
For anyone who doesn't have the equip to home roast, but wants to try some excellent fresh roasted coffees, I can highly recommend Marlton Coffee in NJ. Easy to order from Greg online -- take the coffee along with you to WDW, and brew a fresh pot in your resort room each AM.