Who is the single most greatest Knockout artist ever?

If you have been paying attention to our Poll of "The greatest Knockout" ever which has been just had great support by MMA fans on Sherdog and here with 1,900 votes so far. The one thing if you pay attention you will notice is that the same names keep coming up when we are talking about great knockouts. So I have put another list and Poll together and this one is sure to be argued for a long time on here Sherdog and many other websites. So vote now for the single greatest KO artist of all time.

Melvin Manhoef 22 Wins 21 by T/KO.

Most Notable KO's: Kazushi Sakuraba and Cyborg Evangelista.

Igor Vovchanchyn 47 Wins 25 by T/KO.

Most Notable KO: Francisco Bueno and Kazushi Sakuraba.

Aleksander Emelianenko 13 wins 7 by T/KO. Master of the power punch.

Notable KO's: Ricardo Morais and James Thompson both on greatest KO's.

Shogun Rua 16 wins, 13 by T/KO. Weapons of choice foot stomp and knee strikes.
Most notable KO's: Ricardo Arona for the Middleweight GP win, Rampage Jackson and Overeem twice.

Rampage Jackson 28 Wins 13 by T/KO, master of the Slam.

Most Notable KO's : Chuck Liddell twice and Ricardo Arona (Powerbomb).

Anderson Silva 21 Wins 12 by T/KO, probably one of the few guys who can knock you out with every offensive tool.

Most notable KO's: Rich Franklin twice and Chris Leben.
Wanderlei Silva 32 wins 22 by T/KO. Master of brutal KO power from his hands and knees.
Most notable KO's: Kazushi Sakuraba 3 times and Rampage Jackson twice.

Chuck Liddell 21 wins 13 by T/KO.

Most notable KO's : Randy Couture twice, Tito Ortiz twice and Babalu Sobral twice.

Mirko Cro Cop 23 wins 16 by T/KO. Master of the left high kick.

Most notable KO's: Left high kick on Wanderlei Silva at the Pride OWGP.