I think FF7 was kind of a gateway RPG for a lot of people, which, for better or worse, hasn't been met again. I personally dug FF8 even more, and just never gave myself the time to play FF9 when it originally came out, even though I bought it.
I recently tried giving all 3 a go on the Xbox, but PCSXBox crashes at a number of FMV sequences in 9. Some you can save state before hand, and try again, wishing for luck, some will just always lock up your Xbox. Best not to bother with it, I'm sorry to say. FF8 has the same problem, only during some monster animations (namely one during the last fricking battle. Pissed me off.)