Regular and Super Nintendo were my key systems. Blaster Master, Castlevanian, and the whole Megaman series where my favorites. I played Tecmo Super Bowl, too.
Super NES had the Final Fantasy games. I forgot about Final Fantasy I for NES. But Final Fantasy III was unrivaled and still is. Every RPG I pick up now is too easy becuase of my previous experiece. Playstation took over the RPG series. Legend of Dragoon is my favorite on Playstation I.