http://www.youtube.com/watch?v=eKLJzWCoF3Y
Just watch this. Notice when this video was created and notice how Chie players STILL play the same way. Her oki game is just so dominant that its literally knockdown then guess until you get out. And funny enough, her persona oki setup covers majority of the options. You can't roll it, you can't chicken block it, you can't really blowback it etc etc. The only thing you can do is 1) dp if you have a good dp. 2) block correctly and blowback once you confirm her actual hits and not just the persona. 3) reversal invul super.
Or you play Teddie.