Balthier/Dr. Cid
Tidus/Jecht
Sora/Riku
Squall/Seifer
Siegfried/Nightmare
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Nominate Balthier/Dr. Cid for the Greatest Game Rivalry Contest! Also Tidus/Jecht, Squall/Seifer, Sora/Riku... but mostly Balthier/Dr. Cid :)