Comic book feats only. Battle takes place on earth; Lady Sif is helping Shield and Deathstroke is hired to kill her (sorry about the odd crossover). Lady Sif is alerted to his arrival 10 minutes before he gets there. Win by death or incapacitation. Morals on, standard gear, and Deathstroke has a day to prep. Who wins and why?
Feats from the movies only. Morals off, gear from the first Thor movie (Lady Sif has her sword and shield, Loki has his spear). Battle takes place in Asgard. Win by death or incapacitation. Who wins and why?
Fight takes place in an unpopulated metropolitan city. Morals on, standard gear, fight is to the death or incapacitation. Loki has basic knowledge of the two but cannot use magic; the Fetts have one day to prep. Movie feats for all characters.