What's that, one PC user didn't have bugs with a game, and another didn't, since they probably had very different setups? Could that be point proven?
Again, as I said before, surely the W-Item glitch is a pretty massive bug in FF7. And that's the kind of bug you're far more likely to see in console games.
Gameplay bugs, not graphical bugs or crashes or freezing etc, because those problems tend to occur on PC systems where the setup is unknown. However, I'd bet there are probably quite a few gmaeplay bugs in the Final Fantasy games that you aren't even aware of being bugs, because they're simply part of the game.
EDIT: Although I will concede that the FFs are pretty damn well-written from what I've gathered through playing them. Without seeing the code itself I can't really say much, but it does seem to be very neatly put together.