I find it interesting that two people mentioned the immersive theming at AKL, specifically. I found AKL to be cool and quiet, calming and relaxing--we stayed DVC in Kidani. OTOH, DH found it dark, depressing, and thought the long hallways were dreary, and you had to walk forever to get anywhere. So, I divorced him. No, seriously, he didn't HATE it, it just wouldn't be his first (second, third) choice--in fact, our family really loved OKW. This probably has to do with our vacationing style--I mentioned earlier that we value space and down time. I just found it fascinating that two people who have been happily married for over a quarter of a century can stay in the same room at the same hotel, and have two, completely different reactions to it.
And I think that goes to the larger point of the onsite/offsite debate. Different people put a premium on certain vacation features--there's no one "right", fits-all answer.