Thor vs DCnU Superman (read OP)
This isn't a standard fight. In this fight both characters are well aware of each other's powers. They are both going to try to use their most powerful attacks right off the bat if they think it's viable. i.e., Thor will attempt a godblast immediately if he thinks he can pull it off. Thor will go to his most powerful and exotic attacks IMMEDIATELY.
He's not fighting like normal Thor.
Superman is doing the same. He will press his speed advantage to it's fullest potential, and will hit Thor as hard as he can.
Both are going for a kill. Both know the other is going to use their most powerful attacks immediately.
Who has the edge?
BFR will count as a win, if it removes the character far enough away. i.e. if Thor sends Superman into orbit like he did to Nul, Superman will return immediately.
Fight is on earth, but while all the buildings are here, there are no people and they don't care about destroying earth and any collateral damage.