depends. new Super Mario bros games aren't as good as Super Mario Bros 3 for example, but 3D Marios are still just as good, if not, better than SM64.
Final fantasy sucks ass now,
Metal Gear is as good as always.
Zelda is as good as always.
but see what your saying is opinoinative.
My first FF was 10. Since then Ive played 1,2,7,12&13 and have only enjoyed 12 & 13. If I played it back in the SNES/PS1 days i doubt i would have enjoyed them as much. It all depends on when you started gaming and playing certain series.