Darth Sion vs. Darth Wyyrlok

All out

Wyyrlok's mental edge would break Sion and give him the victory in the end.

Yeah, I'm siding with Wyyrlok on this one.

Mental sorcery is one of the best ways to deal with Sion.

Wyyrlok will keep slicing and dicing Sion vaporizing muscle and bone tissues until there is less and less body materials and Sion gradually turns into a midget.

Wyyrlok's illusions would break Sion.

Sion loses another thread, he is rapidly joining the club of Drallig/Bandon/AOTC Kenobi/Malak