kupomogli on 14 May 2013
Claude and Rena from Star Ocean the Second Story BY FAR. Not saying that it can't be your favorite, but if it's not a potential favorite, then you need to play the game. Alan and Cerl from Breath of Fire is a close second.
Others are Zack and Aerith from Crisis Core, Locke and Celes from Final Fantasy 6, Arc and Kukuru from Arc the Lad and Arc the Lad 2. Elc and Mariel plus Elc and Lieza from Arc the Lad 2. Ryu and Nina from Breath of Fire 5. Alphonse and Eleanor from Tactics Ogre Knight of Lodis.
