You have to concentrate on your strong points instead of foolishly denying the weak ones. They beat you lot on the obvious intelligence of the supposedly designed which you have to deny in order to be consistent with all of it coming from the nothing of the Big Bunk.
They can afford to assume the same hilarious bigbangist premises since they are covered there having their something instead of your nothing in the shape of their putative designer. So they beat you on the conservation laws, entropy, memory, information, etc. which you deny against all logic and evidence.
Therefore, you have to shift the debate towards moral grounds where you lot have indisputable advantage over the ID theorists.
Given the reality of the intricate death avoiding machines forever at cross purposes with one another, i.e., the machines having no other chance to obtain the fuel apart from devouring each other, the only possible designer of such a system could be a clever Devil creating life for personal entertainment, experimentation and amusement. Not all-powerful and benevolent God.
That's just a rough outline from the feline. But you catch the drift.