Depends on what kind of weaponry you have and if you're alone. Give me a flamethrower and a thousand small chickens so I can go on a rampage. Fucking prop-up in a corridor and just funnel them so you can barbeque at your leisure. If we have no weapons, however, and have to wait for the QRF to get to the location, then yeah, give me the big chicken. One large target, a hose of lead or a missile and we're done.
Food wise? Thousand small chickens.