Here's my last part of the bracket. Ryu/Ken aside it feels pretty normal. Maybe there will be some upset along the way that no one sees coming.
Mario vs. Bowser / X vs. Zero
Ryu vs. Ken / Samus vs. Ridley
Link vs. Ganondorf / Frog vs. Magus
Cloud vs. Sephiroth / Squall vs. Seifer
Mario vs. Bowser / Ryu vs. Ken
Link vs. Ganondorf / Cloud vs. Sephiroth
Link vs. Ganondorf > Mario vs. Bowser
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peace comes from within