Played IV, VI-XIII
4-10 were good games, FF6 especially was one of my childhood favorites. FF7 had me literally addicted to all the way until the end. Never finished 9 and didn't care a lot for 8 though to be fair I was totally expecting something like 7 so I know I'm being unfair and didn't give it a chance, and I *LOVED* FF10. 10 stuck with me long after I played it. I actually liked X2, even though it was nothing of the caliber of FFX
11 irritated me, 12 had a great big epic story and I actually liked it but the gameplay was incredibly aggravating and the characters didn't quite rub off on me. I actually liked 13's story but I *HATED* the gameplay. So much of it felt incredibly contrived and put there just to piss me off so I never finished it.