No, seriously [ ] just plain sucks, and [ ] is pretty boring. [ ] is ok at first but then trails off. Play [ ] instead, and then [ ], they are the best.
Now replace the blanks with whatever you want. The point is, everyone likes different games and just because one guy says he likes a certain game and hates another, it doesn’t mean that’ll be true for you. Some people hate FFVII and some think it’s the greatest thing ever. Some discard IX and some, like me, love it. Many people felt underwhelmed by XII and yet some liked it. It goes on forever.
My advice is: Play them all and make your own judgements. IV/V/VI are perfect starting points for newbies and good games in their own rights. IX is a nice enough start for someone who can’t stand SNES graphics. I can only give you advice regarding difficulty and preparation, which one will be the most enjoyable is up to you.
I hated FF4.