Who is more heroic: Captain America vs. Thor
Inspired by the Who is more heroic; Thor or Superman thread, let's now compare Captain America and Thor, as I believe they're actually quite similar.
Both have willingly sacrificed their lives for the benefit of others. Both have led teams into battle: Cap with the Howling Commandoes and Avengers, Thor with the Revengers and the Warriors 3 + Sif. Both have no issues killing but will try to avoid it if possible. Both have gone against rules and laws to follow their own moral compass: Cap in going against the Accords plus protecting Bucky, Thor in going against Odin's orders plus bending rules for Loki. Both even have a momentous bicep-flexing scene.
So... who's more heroic?