which weapon is your favorite weapon?

Allright. Assuming it's a first world (at the time) area, most likely a sword or bow. If i'm fighting on the ground, a sword due to the fact I can't use a bow and defend myself on the ground. In a building, a hidden daggar and/ or bow, due to the fact I can snipe the enemy army down. Perferably, I'd carry both in case of both situations.

umm army of enemy , at battle(don't know where) and medival

You still need to narrow that down.

It depends who I'm dealing with, where I'm at, and the time era.