Well if your saying FFVII DoC is better than FFVII you clearly are just being unfair to FF for being the most popular.

But in anycase out of the Final Fantasys Ive Played:
I,II,V,VI,VII,VIII,IX,X,X-2 and XII

Id say is out of XII or X-2

FFXII for the Poorly stretched out story,alot of the time your just playing the game and there are no events happening its just travelling through areas which gets very tedious,i stopped playing the game for a few days sometiems even weeks just becuase i didnt want to ,i really wasnt enjoying it.the only times that the game got interesting where moments like the Judge Battles or fighting Dr.Cid but look at what you have to do before fighting DR.Cid climb up a 100 floor anicent building which is horribly boring and can take hours.The other part was the Bahumat that part was fascinating but not worth a horribly long 80 hours for with hardly any build up.

As for the Charcters Apart from Balthier There all boring,being fair Ashe wasnt that bad but i think theres was a better new queen on FFIX.As for Basch he was that typical strong male character which doesnt say much and when he does it monotone so its hardly interesting.Penelo....ive forgotten her role in the game apart from just following Vaan.as for Vaan he was hardly an exciting lead character oh nearly forgot Frann,She has a bit more of an exciting backgrounf becuase she was a hidden race but thats it really.Now onto Balthier,If it wasnt for Balthier i would have never completed the game.His character had a very interesting Background

The Fact the He was a Judge is one thing but being Dr Cids Son IS ANOTHER!,Personnaly to make Basch more intersting i think Basch should have previously been a judge instead.

But also unlike the others He was Funny, he wasnt like a wooden plank and he had a great british accent to top it all off.Balthier is by far the most likable party member of FFXII

As for the gameplay,the battle system was ok but repetitive it was just cast bubble then hastega then attack it till the enemy drops down.there was no need for offenssive magic or techniques.I think thats all i have to say about FFXII

Now onto FFX-2

Well The characters on this game were terrible even all the good cast from FFX are annoying on this game ( - Wakka,Lulu and Khimarhi) Yuna was a strong brave character in FFX,On X-2 They destroyed this character. I Quote

Yuna: Poopie!
Rikku: Yunnie.
Yuna: I was just trying to be like you.

See!,let alone the Dialouge be Childish,it shatters he true strength and pride and confidnece she agained from FFXs adventure and nows shes just weak and dependant.Rikkus even more annoying than she was in FFX and they just slapped the cardboard cut out paine to try make up for no Auron when Paine's not even in the same rank as Auron.

Its a shame i no FFX was a bit of a sad game but to burst of with this sudden contrast just doesnt feel right.pretty much all though the game your doing silly sidequests untill the end.the only thing peoplee who loved FFX want to see is that ending well my advise is avoid this game and just watch it on youtube because guess what there are 4 different endings,what a piss take.

Now moving onto the gameplay,They brought back the level up System which is great i hated the Sphere Grid of FFX,it was just a chore,while on the previous FF its all done automatically.but where this game starts to fall is in battle ratehr than out of.The Dress Sphere system,is disgraceful.Changing Clothes during battle "Yuna: Wait a second Behemoth,i just going to strip and change into a black Mage, you can keep my White Mage underwear.", its rediculousand also a waste of time itf one dress you want is at the other side of the dressphere you have to get changed more than once..It is a truely awful sytem i dont know why they did that.also due to the story You cant cast Summons, which is one of teh coll things about FF, but they just ripped it off the game.though the pace of teh battles are fairly good when your not changing your pissing clothes.

Out of FFXII and FFX-2 I say FFXII is better,it had some good moments and the Judges are pretty cool,while FFX-2 was horrible all the way through.

So i voted For FFX-2