It's a useless hypothetical. It's like saying "If Hitler was not a dictator and didn't kill anyone, would you still think he was one of the greatest mass-murderers of the 20th century?" By gutting the possible choices of the elements that make them what they are, you've made the choice completely meaningless.
Exactly. Once you stated the "unlikely" premise, you invalidated the part of the equation that was Gore. In other words, you might as well have picked anyone other than Bush...