For me it would have to be the Shin Megami Tensei series.
Yeah, all the ATLUS fans worship it, but the rest of the world tends to ignore the series so much, which is a shame as it is a very strong series.
Megami Tensei 1 and 2 were fairly revolutionary NES games, (I'd love to play them, but I can't read Japanese...

), and Shin Megami Tensei 1 and 2 are pretty good games on the snes, (but they are very hard!)
Persona is a little weak, but I have enjoyed the little I've played of Persona 2 and Persona 3, (I don't personally own them, a friend of mine has them, but the games cost quite a bit to get). I should imagine Persona 4 is up to standards as well.
Shin Megami Tensei 3 though, is an excellent PS2 game. I bought it for a £5 from HMV and its was an absolute bargain.
I just love present day apocalyptia vibe you get from the games.
The most easy to get, but arguably still falls under the curse, is SMT: Devil Survivor on the DS.
Its a spinoff, that plays quite differently from its older siblings, and its fairly short for an RPG, but it is one hell of a game I highly recommend playing!
Its only flaw, is that you have to play through the whole game again to get the endings, (which may not seems so bad, but in New game + you are so ridiculously overpowered its just a drag, despite the vey good story!).
EDIT: Also, all of the Oddworld games are great games too! I want another game in the series so bad, or even a movie/tv series would be nice.
EDIT 2: Again, another one: Panzer Dragoon Orta. The only arcade shooter that compares to the epic Star Fox 64!!