Final Fantasy has had a handful of different battles systems: Traditional Turn-Based (based on AGL or SPD), ATB, CTB (FFTactics), Conditonal CTB (FFX), RTB (FFXI), ADB (FFXII), or CSB (FFXIII).

Which one is your favorite?

I'm stuck between ATB and Conditional CTB. I like knowing whose turn is next (CCTB), but I also like wondering if my turn will come in time for me to win a battle. The one I definitely didn't like ws the CSB from FFXIII. I did not like having direct control of only one of my characters.