Jak and Daxter (Too bad I don't play a him, he was awesome in the demo though), Cole, Spike, and Sly Cooper are all in the game. I am also starting to really like the new Dante. Missing a few but I have some great characters, especially Jak and Daxter.
prince of Persia moveset: http://community.us.playstation.com/t5/PlayStation-All-Stars-Battle/Prince-of-Persia-in-all-stars/m-p/38273897#M125640
Before this post, no one has said anything about Crash and Spyro being their favorite characters....
Proud of you guys.
I left Spyro out of my post because I figured enough people would have me covered. Guess not.
Make that Sackboy, Sly Cooper and Spyro.
Sackboy Sly and Spyro are Stephen's superstars from Sony's systems.