FFVI, not FFIV. I consider FFIV to be a cliché, boring RPG that has so little going for it it simply isn't worth playing in this day and age.

Also, Ruby Weapon is incredibly easy if you have the right Materia. And by right Materia I mean Hades, Knights of the Round, W-Summon (optional if both Hades and KOTR are level 2) and Mime.