Character's potential- underrated edition

I guess ill make a 1-10 list of some characters, and their potentials, and then list some of the characters i wanted to ask about. 

This list is for reference only, and not exact. if someone has any quarrels about anything, just inform me.

1- Luke Skywalker/ Galen Marek

2- Sidious 

3- Vaylin 

4- Revan

5- Dooku

6-

7-

8-

9-

10-

The characters to that need to be evaluated are:

Darth Maul
Sedriss
Obi Wan
Darth Vader
Leia
Bane
Malak
Ulic
Bastila
Lumiya
Asajj