The forehand stroke is usually the most powerful and the stroke most users want to use. Of course it has to be on the right side of the person to get the forehand stroke.
The forehand in tennis is a shot made by swinging the racquet across one's body in the direction of where the player wants to place the shot. For a right-handed player, the forehand is a stroke that begins on the right side of his body, continues across his body as contact is made with the ball, and ends on the left side of his body. It is considered the easiest shot to master, perhaps because it is the most natural stroke. Beginners and advanced players often have better forehands than any other shots and use it as a weapon.
The way I learned was to:
Break Up (Release two handed grip)
Come Around (Begin to come around in a circular form)
Contact (Make contact with the ball)
Follow Through (Follow through over your shoulder)
Finish Up (Just finish the stroke)
Back to the ready position (Back in the two handed grip)