I really want to say Quayle, but of course, as such a recent president, we can't judge his presidency in a historical context. Give it a decade, at least. Who knows, maybe the president who left us notably weaker than the Soviet Union for the first time will be vindicated by history.
Now Rockefeller was a disaster. It's a miracle that the Far East isn't a smoldering crater after his handling of the missile crisis. Besides billions of lives on the line, he also risked, and lost, the friendship of Japan. We've been kicking ourselves over that ever since, especially in in today's age, as Japan has become a major economic and military power.