I don't know about FF1 or 2 (my psx version is still unopened), but I have to suggest FF4 on the PSX, even though it kinda ruins the magic of SNES Console, and the saving system takes too long. If FF4US wasn't the Easytype version, I would recommend the SNES game over the PSX one, but *shrugs*. So if you can't speak japanese, go on and enjoy the FF4Chronicles version on the PSX.

The differences I've seen between FF4US and FF4Chronicles are:
- FF4C has two videos (worthless to me)
- FF4US is faster to save
- FF4US is too easy (Easytype)
- Differences in language, censorship issues... (because it's easytype, and bla bla bla)...