Ethanol produces more energy and it is far more efficient. Ethanol is a vital part of our energy future, and it needs to be accepted and embraced, but of course regulated to counteract its harmful effects which it undoubtably has. It's time we realize this and do this, so we don't have to have a painful future.
Even if it doesn't already, scientific advancements will see to it that we can generate new fuel sources as efficiently as possible. It's inevitable, and we have to stop the reliance on oil as our fuel source now before we run out and we're left to come up with a new fuel source during a crisis.