I'm not a fan of ethanol for a few reasons:
1. The big idea here is that it's somehow better for the environment, despite the fact that it takes a bunch of extra machinery to harvest and refine corn and then transport it to a refinery where it can be mixed with fuel. And then what you get is fuel that is less efficient than if you'd never added ethanol to it in the first place. How exactly does that help the environment??
2. The seals in the fuel systems of older vehicles were not designed to handle ethanol, which can make them fail.
3. Ethanol also absorbs moisture out of the air, so you're extra prone to fuel leaks if your vehicle sits for a while (say you have a motorcycle and want to store it for the winter).
So, not only is ethanol WORSE for the environment, but it's also a safety hazard! I know about the leaks first hand, as I've had vehicles that were dumping fuel on hot exhaust manifolds, because the fuel lines had corroded through. I've also seen pictures of vehicles that had burst into flames while being transported, not even DRIVEN, because their fuel lines were leaking. I blame ethanol.
Drink bourbon, put gas in your fuel tank!