For me it was the easiest FF. it has a few flaws like there is only one place where you can get the "Deathcap" - which teaches your Blackmage "Death" and that place is story related - so if you miss it you can never get it again
Well I've played IV, V,VII series, VIII, X/X-2, XI, XII, XIII series and XIV. Everyone's always told me I NEED to try IX, so I'm gonna give it a shot! It looks fun!