FFX was a great game, and even though its graphics aren't PS3-quality, its one of the better games on PS2 and its already fully voiced. I am happy about the remake, but V, VI, VII, VIII or IX would have been better because they are much older.
Oh, but I don't agree with X-2...I thought that game was kind of "unnecessary", though I do admit it did have a few good things.
I personally don't like VIII very much (well, at least in comparison with the other FF games), but, as I said, it would be a better choice than X. But I am glad they chose X over XII. I really didn't like XII, beating the final boss without touching your controller is pretty sad.
Also, I agree that the hate against VII is pretty sad. No, I'm not saying is the best RPG in the world or something like that, and I won't even say is the best Final Fantasy, but it was a really good game, and Crisis Core also (though the movie...well, at least the fight against Sephiroth was good). Oh, and you might love or hate Sephiroth, but One Winged Angel is Awesome.