if FF7 is unplayable, it has nothing to do with the year being 2008. games don't age like people do, if it was bad now it was bad then. the problems with the game were perfectly evident when it first came out. personally I found it full of cool stuff, but unsatisfying overall (then and now). 5/10
and FF8 has cool system concepts, visual design and music, but is ridiculously unbalanced and ridiculously slow. also 5/10.
FF9, however, is bumped up to a 6/10 given PS2 fast loading.