User blog comment:GeneralWarhawk/Which is better? Blade of the Abyss or Thunderspine Sword?/@comment-4182186-20120812002723

Well... for PvP and Bosses, I'd say Thunderspine. If you're going after a group of enemies (like Tormenta), then I'd say Abyss, for it's Blood Fire ability.

I wouldn't know which is best overall, since I don't have either of them. xD