endgame? Crono/Ayla/Lucca/Robo seem like the most useful. Magus is like a lesser Crono with no dual techs. Marle has Haste but no good attacking spells. Frog is like a red mage that gets outclasses at the end of the game. he's probably the worst.
I always was fascinated by CT's character balance. everyone seems to have a completely different opinion.
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xyzzy