Anakin Skywalker (ROTS), Galen Marek, and Luke Skywalker (ROTJ) vs. Darth Sidious
The three great apprentices vs. the master of the Dark Side. Who wins? This is Darth Sidious full power from Revenge of the Sith when he was fighting Yoda.
1. Saber
2.Force
3.All Out
My bet is on the Light Siders. It would be a tough battle, but the Force would be on their side.