I've played quite a few Sqare Enix games in my day.
Played a great deal:
FF2,5,6,9,10-2, DQ1,9, DQM1,DQJ1
Played a little
FF3,13, DQ2, DQM2
FF11,14,TA2, DQ6,7, DQJ2
The one I miss the most is FFT. Sure, having multiple playable races was nice, and I kinda liked learning spells and abilities from gear. But TA's story was atrocious. "Escaping the real world is bad and you should feel bad." Get a life, MC. (Can never remember the name of TA's MC.)