Actually, the article "the" would work for me: "I am ordering the fried chicken." I could also see "a fried chicken," but ordering a whole fried chicken is pretty rare. It makes me think of the scene in The Blues Brothers when the recently departed Aretha Franklin (RIP) says, "the other one wants four whole fried chickens and a Coke!"
true! i personally don't eat them, but i've dropped in a few times to pick up chicken for others, and you order 'a chicken' (not 'the chicken' or simply 'chicken'). i guess it depends on the type of establishment as to how you go about expressing your chicken order :)
the charcoal chickens i think are grilled really. but they're crispy and greasy looking, and i was thinking of that take away, fast food kind of vibe of 'i'll have a chicken, large chips, and a cola, thanks'.