Biggest Forehand in the World?

I want to know who has the biggest forehand in the world and if you could choose, whose would you emulate or take?

Personally, I Igor Andreev has a monster of a forehand. Not only will his forehand freeze your movement, but the ball has so much sting after the bounce. Have you ever seen Igor hit a backhand? It's that good!

As for an aesthetically pleasing forehand, I will have to take Roger Federer. The forehand is so smooth and fluid, yet he still gets an incredible amount of extension and spin on the ball.

I really like Nadal's forehand, but the only problem is he can't consistently hit winners with it. It is a fantastic defensive shot and neutralizing rally ball, but for playing offense- not ideal.