Top 15 most powerful Sith

Because ten is not enough, I decided to make it fifteen... so yeah.
post your lists here.

The List
1. Darth Sidious
2. Darth Bane
3. Darth Plagueis
4. Darth Caedus
5. Lord Vitiate
6. Darth Vader
7. Darth Zannah
8. Darth Malgus
9. Exar Kun
10. Darth Tyranus
11. Darth Krayt
12. Darth Maul
13. Darth Marr
14. Darth Nox
15. The Wrath

Honorable mentions
these are people who should be in the top 15 somewhere, but are too difficult to place.

Darth Tenebrous- IMO he's right below ROTJ Vader
Darth Cognus- She's probably about Zannah level
Tulak Hord- He's probably between Nox and Vitiate
Freedon Nadd- He's probably about Vader level
Marka Ragnos- He's probably about Vader level
Darth Nihilus- IDFK
Kas'im- He's probably between Wrath and Maul

My list:

1.  Darth Sidious
2.  Darth Nihilus
3.  Sith Emperor
4. Darth Bane
5.  Darth Caedus
6.  Darth Plagueis
7.  Exar Kun
8.  Tulak Hord
9.  Krayt
10.  Ragnos
11.  Vader
12.  Malgus
13.  Zannah
14.  Darth Nox
15.  Freedon Nadd

list was incredibly difficult to make, subject to change.

1.Sidious
2. Nihilus
3 Plageuis
4 Bane
5 Vitiate
6 Caedus
7 Krayt
8 Kun
9 Vader
10 Zannah
11 Dooku
12 Malgus
13 Revan
14 Ruin
15 Addendum  (I put the last 2 guys there because I think they should probably be on the top ten but since a lack of information on them they are unable to be placed properly)

My list I think would be DMB's but I would put Nihilus at 2.