The closest I got to an RPG when I was younger was Legend of Zelda: LttP (in terms of 16-bit). I don't think Australia had any RPG's, or at least I wasn't interested in them until I got a PSX.
Though, from what I have emulated and played ports of...
I'd say that Chrono Trigger and Final Fantasy VI were the most epic I have played. Seiken Densetsu III and Super Mario RPG come close too.