Underrated RPG rivalries incoming:
KOS-MOS/T-elos (Xenosaga)
Fei Fong Wong/Id (Xenogears)
Jin Uzuki/Margulis (Xenosaga)
Alex/Ghaleon (Lunar SSS)
Riou/Jowy (Suikoden II)
Star Dragon Sword/Neclord (Suikoden)
Dart/Lloyd (The Legend of Dragoon)
Gala/Songi (Legend of Legaia)
Yuri Hyuga/Albert Simon (Shadow Hearts)
Kaim/Gongora (Lost Odyssey)
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KOS-MOS: There is no connection between my current systems and your life functions.