I never played the PSX version, I played it on SNES.

Though to be fair Tactics Ogre probably deserves the title as Mother and Father of all SRPG's more then Ogre Battle. Final Fantasy Tactics was build more off that system. I never played through it, but 'Let us Cling Together' was a remake of Tactics Ogre on the SNES if I remember correctly, though the original SNES version never made it stateside.