Well, we also have the crossover step which is used very much today. Great stance if you can learn to control the right foot from foot faulting. Lot of women use it now but even the men are using it because it gives them greater torque/rotation into the ball.
As most know, you start in a platform stance and then move the back foot along side the left on the baseline (right handed approach).
Another one gaining more popularity is moving both feet - start 6" (depends on the player) behind the baseline and more left foot first to baseline - more of a variation to a pin-point.
Both are good but remember you have to come to a complete stop prior to the toss - in other words you have to stay away from the volleyball type serve.