I use an Eastern or Extreme Eastern depending on the situation. I generate a lot of topspin. Admittedly, the key to my topspin is the relaxation of the grip and ensuring a very elastic stretch-shortening cycle on the swing forward. It gives me a lot of racquet head speed.
If I didn't have the racquet head speed created from the SSC, I'd never be able to create any decent topspin. I used to have a plain Eastern forehand. I have no idea how anybody can create noticeable/interesting topspin without a really good SSC.