Poketrainers - fun rivalry vs. Waluigi
Tidus/Jecht - probably two of my five favourite rivalries in the contest, so I'll vote for the one that will lose
Phoenix/Edge - great rivalry, will have a fun start to his match, B8 favourite etc. vs. one I don't care about (though I like Freeman)
--
Praise the Black Turtle, Game of the Decade Guru Champ.
(Well, I never promised creativity, did I?!)