Just to clarify a point brought up in that thread, after he transcended his human form he doesn't need to use verbal incantations anymore, just his thoughts.
Dark Schnieder wins this. His shields are far more powerful than Darkseids, he can cast several thousand spells per second via dispel bound, and he's immune to just about everything via his Judas pain. Hasn't Darkseid had trouble with superman in the past? Even Dark Schnieders lower level fire spells exceed Supes heat vision, and he has a couple of really vicious reality warping attacks that could K.O. Darkseid. By the way is the Omega effect a reality warping attack?