Gimme the red one! Hehe... Ahahahah... Haha... *laughs maniacally*
Give. Me. The. Red. Katana.
I'm. Gonna. KILL EVERYONE THAT I HATE!!!
(But seriously though, I'd choose the red katana, red is colour of blood and I like the sight of blood. I'm maybe evil. Or I'm not. But ya got my vote. An upvote that is.)