Perhaps the one aspect of FF2 I love more than anything else is it's balls-to-the-walls approach to dungeons and crawling thereof. Unless your prepared adequately before a dungeon, or have an exit strategy, chances are you're going to get slaughtered. There's really little room for error. The levelling system is actually one I enjoy immensely, and would love to see something like that implemented later on (FFX doesn't really count in this department). If you were to combine the advancement system of FF2 with the job-based abilities of FFV/FFX-2, then you could have something pretty special on your hands.