Oh man, that's a tough one! But, I'm kinda leaning towards the Shadow of Darkness

The eternal god of Shadow Blade, the experience is wonderful.

shadow, darkness is my favorite kinda theme.

Abyssal Flame is my favorite, I really like the dps skills and the enhanced jump and parry. Don't get me wrong, Shadow of Darkness is a monster of pure damage, immunity and life steal, including the double jump and parry-like dodge but I still love the AF version of Soul than SoD with no proper reasons.