While W. sucked in many ways, there is no way he is the worst. Off the top of my head I can easily think of four better contenders: Franklin Pierce, James Buchanan (both guilty of pro-slavery fuckery before the Civil War), Andrew Johnson (fought to let the Confederates off the hook after the war and opposed the 14th amendment), and Donald Trump (first president to be impeached twice, first to be convicted of a felony, and may be remembered by future historians as the spark that ignites the next Civil War).