Gore.
Seriously, liberals? You vote for this guy over Humphrey?
Humphrey was a warmonger and quite frankly a terrible choice. I would've written in McCarthy or just stayed home.
Humphrey did support the bombing halt. Given his support for Clinton's involvement in Yugoslavia in taking one of the several equally evil sides, and supported the war in Iraq, I wouldn't exactly call Al Gore a pacifist either.
Remember that he was behind the first openly pro-civil rights Democratic platform and was the architect of much of the Great Society. However, he was a terrible speaker and unfortunately probably too nice to be president.