The MYW tickets are the best. You get to choose exactly what you need. My friends and I are going down to the world- they were able to get 8 day hoppers for $882 (or close to it)- since they are not planning on going back they didn't purchase the no expiration option. However, since my family has been many times we bought the 10 hopper w no expiration (which now cost $1435- 2006 prices).
What I think is ridiculous is the price they are charging for the no expiration tickets -Its 135 per ticket on a 8-10 hopper. I was fortunate to be reading the DIS on December 31, 2005 and bought my hoppers then, before the price increase on Jan 1, 2006 so my no expiration option only cost $100 a ticket, but we plan to do a park all day from early morning to late at night and rest the next day and enjoy the resort so the tickets will last us a few trips. Whereas my friends, who have only been to Disney once will probably go to the parks every day for a half day, because they have young kids so they will use their 8 day hopper.