User blog comment:Sysage/Blackheart vrs Thor/@comment-4649451-20120510165649

Could come down to where they fight, if in Mephisto's realm or similar Blackheart could make it very difficult for Thor, also somewhere like Midgard where Thor is worried about the realm and endangering others, Blackheart could have the edge there. But if it was a full out brawl with Thor going for broke, i'd back the Odinson everyday.