We're taking food and converting it to fuel...
That makes bicycles, which get 48 miles per gallon of orange juice, sound bad.
And if it's wrong to use a natural resource for transportation when that same resource can also be used to produce food, then why are we using fossil fuels for transportation?
And is it wrong to use land to produce biofuels if the biofuel is used to produce or transport food?
For these reasons, the "no food for fuels" argument doesn't make perfect sense to me.