tbh none of the ff games suck.... but if you compare them with 7, you could say they are poor, although 6 and 8 are quite good.
ff 9 just seemed a little silly with the charectars, a monkey man, a fat chef "thing" and some fat knight that looks like a 7 yr old drew him...
the story however was good in 9, and 9 seems to be the only one where your main charectar doesnt start off as a stuck up ponce