Also, REO just posted his version, too. Just to compare notes:

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S :: Erron Black, Geras, Scorpion, Sonya, Sub-Zero

A+ :: Baraka, Cassie, Jax, Liu Kang, Noob

A :: Cetrion, Jacqui, Kabal, Kollector, Skarlet

A- :: Jade, Johnny, Kano, Kitana, Kung Lao, Raiden

B :: D'Vorah, Frost, Kotal , Shao Kahn

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and just because, why not. Here was mine that I've worked on over the week, fwiw. It's closer to Rio's, but HoneyBee isn't far off either. When people are in agreement, it's a pretty good sign that the tiers are at least close to being correct barring a few minor changes.

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S :: Geras, Sonya

A+ :: Erron Black, Scorpion, Sub-Zero, Noob Saibot

A :: Baraka, Cetrion, Jade, Jax, Kabal, Kollector, Liu Kang, Skarlet

B :: Cassie, Frost, Jacqui, Johnny, Kano, Kung Lao, Raiden

C :: D'Vorah, Kitana, Kotal Kahn, Shao Kahn