I'm seeing lots of 'rivalry factor' talk around here. People are saying that some rivalries will do better because their rivalry is good, some will do worse because their rivalry is bad, ect. Let's find out what B8 truly thinks about these rivalries (note that this isn't supposed to be a rank by contest strength thing, don't do that).
Mario vs. Bowser
Jim vs. Queen Slug-for-a-Butt
Conker vs. Great Mighty Poo
Ike vs. Black Knight
Kirby vs. Meta Knight
Jill Valentine vs. Nemesis
Sonic vs. Dr. Robotnik
Katherine vs. Catherine
+8
+7
+6
+5
+4
+3
+2
+1
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Black Turtle did a pretty good job.