Was just thinking about horrible JRPG's for some reason and was curious to hear what the worst ones you've played are.
For me, Granstream Saga, Guardian's Crusade, Shadow Madness, Enchanted Arms and Hyperdimension Neptunia spring to mind. I'm pretty sure I got a quarter to half way through these and just gave up.
The worst that I've finished would have to be Holy Magic Century (Quest 64). What a load of rubbish.