Of the listed items, easily the master sword, because it also has the potential to travel through time.
However, my favorite weapon that isn't batshit crazy is the lightning claw from Dawn of War, because there aren't many more badass things than massive, metal, razor sharp claws with lightning running through them.
However, my favorite weapon that isn't batshit crazy is the lightning claw from Dawn of War, because there aren't many more badass things than massive, metal, razor sharp claws with lightning running through them.