DCA sure has come a long way. Back when it first opened, there really wasn't a lot of stuff. Now, Carsland is one of the best "lands" on the property, and BVS is a whole lot better than Sunshine Plaza.
I often forget how much there is in DCA because some of the attractions are easy to miss, such as It's Tough to Be a Bug.
That being said, Paradise Pier still suffers from the fact that you can see hotels and outside stuff from outside the park. Screamin' is just a roller coaster, and while Mickey's Fun Wheel looks ok, and is part of WoC, waiting 30 mins for just a Ferris Wheel is not a classic Disney experience. I guess that the Fun Wheel is a lot of fun for kids who has never been on a Ferris Wheel, but in terms of re-rideability I think it is lacking.
I think DCA has come a long way, but there is a lot more to do, especially the Hollywood area and I would like to see Monsters Inc. drastically upgraded, in addition to "fixing" the second half of Mermaid which has an unfinished look.