FF1, on the NES, back in the day.

Although after that, the only one I played for the next 6 years was FF: Mystic Quest on the SNES (I borrowed a friends SNES one Christmas, as I had gotten away from gaming at that point), and then FF8 in 2001 (my roomate at the time had a PS1 and had borrowed a friend's copy of FF8, and yes that was many years later). I was hooked all over again. Then the following winter (2002) I bought F7 while in Houston, and played on the same roomate's PS1 (we were both down there for a workterm).

When I graduated university in 2003 I played a FFVI ROM on computer. Finally my girlfriend got me a PS2 that year for Christmas, and subsequently bought FFX. That lead to FFX-2 (yuk), FF8, then back to FF7, then FF9, and now FFXII.

I still have yet to play FF2, FF3, FF4, FF5, and the tactics games, even though I first played (and was highly addicted to) FF1 when it first came out. I even borrowed my cousin's Nintendo Power FF1 Guide (the one with the red cover). Funny, how I never got back into it until many years later.