Thor Annual 6
Being affected by Korvac, neither want to fight eachother, but when they go all out, not only is the depiction that they are equal in power, it literally says as much on panel. The fight ends with neither actually hitting the other and the building falling apart.
For as much as one might argue Thor is holding back or not fighting to the top of his powerset, his depiction is far more in character than is Starhawk's, who is actually fighting in the least effective way he could, and far different than he is normally depicted (FTL blitz + powerful energy blasts).
Anyone who thinks scenarios 2-3 are a stomp or easy wins for Thor is grossly misinformed about Starhawk. Hell, I'd BZ this one I think...