Shining series is definitely one of the better ones out there since I haven't played a shining game that wasn't fun and addictive.(sf1, sf2, sf on gbc[forgot what its called], ss2, sf: rotdd, and probably more)
I'd say ogre battle, but the only ogre battle game capable of toppling all other game series' is ogre battle 64.
Ogre battle tactics was okay, and the SNES one wasn't too good in my opinion.
So there.