From everything that I have read, you want the Carpenter one. That is the one that people have matched up the numbers. I bought it
here.
My wife and I slept on them for the first night last night. After taking some time to adjust the "tucking in" of the pillowcase to give it a bit more firmness (as per instructions earlier in this thread), we found that we could make it approach what we remember in Disney. Yet I still want to hear from someone who stayed recently on the Disney property who can confirm whether Disney also tucks in the pillowcase. I recall the Disney pillows looking a heck of a lot nicer than my pillow looked once I shoved it in the pillowcase and tucked in the end of the pillowcase. Do they have yet another cover over it?
I am wondering if the same effect can be had by using a zip dust mite cover that is one size smaller. So, for my king size pillow, I'd use a queen dust mite cover. I figured that might work since the goal of the tucking is to give the pillow some more firmness.