you'll also find a lot of the negatives are related to flex fuel vehicles which aren't designed to run on ethanol so much as they are designed to tolerate it and gasoline.
Ethanol needs lots of cylinder pressure to become an efficient fuel. I.E. an engine I built on E85 was 11.5:1 CR with 19 psi and no intercooler

The other downside is the crop/field comments, which are pretty much solved by cellulose development. Much like algae to biodiesel.

By all means, bounce your ethanol views off of me as I've done lots of research, design, joint projects (Dartmouth, MIT, GA Tech and ODU/NASA) and been in several SAE/international level lectures on alternative fuels.

as for GST racer....why does every think the word ignorant is abusive or rude, especially when it is used properly?...maybe I was a bit aggressive in my reply to a gross statement packed full of incorrect and unsupported statements...I'll try and tone it back a bit.