FFVI here, yours?

FFX because there is no time bar and the attack turns are totally based on speed stats, allowing you to go away from the PS2 in the middle of a battle. Also being able to control summoned cratures is awesome. I also really like FFIX because every character has its own role, with it's own skills/stats; but that's not exactly "battling system".

Either Tactics or IX because I think they have the most clearly defined roles. The Active Time Battle is the most refined in IX as well. Although you can also change it back to purely turn based too.

x is

FF3

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