From what I have by my bed, I'd go with a KA-BAR, or a Gerber machete. But really, in a close space a machete is kind of pointless, it can't stab, and if you try to swing it more than likely you'll just hit the wall. The same with a katana, claymore, cutlass, what have you. So I'd take the KA-BAR. The knife is good enough for the USMC, it gets the job done.