They're probably the best pads ever. But if you can't find 'em, the 3d pad is really good as well.
I just wanted to comment that it's probably a good thing the start button on the Chun-Li pad isn't in the same place as it is on the Saturn pad. 😉 .. It is nice to see a PS pad with the six-button layout, though. I could never stand the SNES/PSX/DC layout for Street FIghter games. I used to always change the fierce and roundhouse to the triangle and circle buttons (I don't use medium attacks very often), because I can't combo or do special moves at all if they're on the shoulder buttons.