I would have to say Chrono Trigger, by far in my opinion. The combination moves were a great addition to it. The different combinations made combat not repetitive. Plus the different times made it much more vast. And the characters in it were great.
FF1
FF2
FF3
FF4
FF5
FF6
FF7
FF8
FF9
FF10
FF10-2
FF11
FF TACTICS
FFMQ
KINGDOM HEARTS
CHRONO CROSS
CHRONO TRIGGER
XENOGEARS
VAGRANT STORY
SEIKEN DENSETSU
I would have to say Chrono Trigger, by far in my opinion. The combination moves were a great addition to it. The different combinations made combat not repetitive. Plus the different times made it much more vast. And the characters in it were great.