You haven't failed LeeLee, it's just the first thing people must do after their trip is to begin the justifications for the next one. You don't know how many times "my dog ate my video tapes"...

As to the topic at hand. I think the Mira Costa is the one hotel that offers the most unique experience at the Tokyo Disney Resort. While the Ambassador and Disneyland Hotels are nice, I think you get the same basic resort benefits (at the expense of a fancier room) at the Sheraton. There's nothing like waking up at the Mira Costa and looking down on DisneySea at dawn. And there's nothing better than being able to quickly pop back during the middle of the day for brief visit. I use the Sheraton to save a few bucks and extend my stay, then the Mira Costa for a final extra dose of Disney.