NES, PlayStation and PSP. I've only ever used an emulator here recently, and they feel like such a massive cheat that I'm glad I experienced all the RPGs for the first time, thus far, on real systems, or I think the experience would have been lost on me if done via an emulator. I like emulators for the games I've already played a ton of times, and don't mind speeding through treacherous grinds.