I assume most people like VII because it was their first RPG, and considering the graphical quality back then, it looked pretty damn nice. X for the same reason.
And I can't stand the PS1 FFs, even though I enjoy every other (main) FF game (and Mystic Quest and X-2). VII is too irritating for me, VIII, I enjoyed the Junctions, but disliked the fact that the enemies were handily stronger than me even in the mid-game, and I couldn't even get halfway through the Mist Continent without getting tired and bored.
And I can't stand the PS1 FFs, even though I enjoy every other (main) FF game (and Mystic Quest and X-2). VII is too irritating for me, VIII, I enjoyed the Junctions, but disliked the fact that the enemies were handily stronger than me even in the mid-game, and I couldn't even get halfway through the Mist Continent without getting tired and bored.