How would you have voted?: United States Presidential Elections

[Peter the Lefty]

For the Democratic primaries, I'll start with 1952, since I would've joined the party at around that time. 

1952–Estes Kefauver
1956–Estes Kefauver
1960–Hubert Humphrey, then Wayne Morse when he entered.  After they'd both pulled out, I guess JFK. 
1964–LBJ.
1968–Eugene McCarthy until RFK entered.  After he got shot, I'd have gone back to McCarthy.
1972–George McGovern
1976–First Morris Udall, then Frank Church once he entered.
1980–Ted Kennedy
1984–First Jesse Jackson, but I would've abandoned him for Mondale after his anti-Semitic remarks came out
1988–Err...Dukakis I guess.  Couldn't vote for Jackson for the same reasons as 1984. 
1992–Tom Harkin, quite reluctantly since he's an Israeli tool.  No one after he dropped out. 
1996–Would not vote
2000–Bill Bradley (again, reluctantly)
2004–Dennis Kucinich
2008–Dennis Kucinich again (not with hindsight cause of the Gadaffi stuff) then Edwards after he dropped out (not with hindsight), then Obama (would have spoiled my ballot with hindsight)

[Peter the Lefty]

1876: Peter Cooper (Greenback-Labor)
1880: James B. Weaver (Greenback-Labor)
1884: Benjamin F. Butler (Greenback-Labor/Anti Monopoly)
1888: Alson Streeter (Union Labor)
1892: James B. Weaver (Populist)
1896: Charles Matchett (Socialist Labor)
1900: Eugene V. Debs (Social Democratic)
1904: Eugene V. Debs (Sociaist)
1908: Eugene V. Debs (Sociaist)
1912: Eugene V. Debs (Sociaist)
1916: Allan Benson (Sociaist)
1920: Eugene V. Debs (Sociaist)
1924: Robert M. La Follette (Progressive)
1928: Norman Thomas (Socialist)
1932: Norman Thomas (Socialist).  FDR was running as a fiscal conservative in 1932 (really).
1936: Norman Thomas (Socialist).  FDR let the bankers off the hook.
1940: FDR (Democratic).  A bunch of crazy "revolutionary" socialists were taking over the SPA and Thomas wasn't doing anything to stop them.  Plus, Wallace was really good at that time.
1944: Norman Thomas (Socialist).  Thomas had finally stood up to the pigheads in the SPA.
1948: Norman Thomas (Socialist).  Truman was a machine politician who'd threatened to draft striking workers into the army.  And Wallace was controlled by the Commies.
1952: Darlington Hoopes (Socialist).  Stevenson was also a machine politician (and an anti-New Dealer, in fact) with a racist running-mate. 
1956: Adlai Stevenson (Democratic).  He was running on a progressive platform this time.  Plus there was no socialist candidate, unfortunately. 
1960: JFK (Democratic).
1964: LBJ (Democratic).
1968: Hubert Humphrey (Democratic) if I lived in a state where it mattered.  If I were in an ultra-liberal state where it wouldn't matter, I'd write in McGovern or Ribicoff, maybe. 
1972: George McGovern (Democratic)
1976: Frank Zeidler (Socialist).  Carter's conservatism combined with Socialist nostalgia.
1980: Barry Commoner (Citizens).
1984: Walter Mondale (Democratic)
1988: Michael Dukakis (Democratic)
1992: J. Quinn Brisben (Socialist)
1996: Ralph Nader (Green)
2000: Ralph Nader (Green)
2004: Ralph Nader (Independent)
2008: Barack Obama (Democratic), Nader with hindsight
2012: Rocky Anderson (Justice)

[Peter the Lefty]

Democratic primaries, 1952 to present (I would've joined in 1952 to support Kefauver)
1952: Estes Kefauver
1956: Estes Kefauver
1960: Hubert Humphrey, then JFK after he pulled out.
1964: LBJ
1968: First Eugene McCarthy.  Then RFK after he jumped in.  Then McCarthy again after RFK was shot until McGovern's last-minute entry.
1972: George McGovern
1976: Mo Udall.
1980: Ted Kennedy.
1984: Jesse Jackson at first, until the "hymies" remark came out.  Walter Mondale after that.
1988: Joe Biden at first.  Then Dukakis after he backed out.  Again, Jackson were it not for his past statements.
1992: Tom Harkin.  Then I'd be so pissed about the lack of a liberal that I wouldn't vote for any of 'em.
1996: No one.
2000: Bill Bradley
2004: Dennis Kucinich.  Howard Dean with hindsight (ahem Gaddafi)
2008: First Kucinich (not with hindsight), then Obama (without hindsight).  With hindsight, I'd have just ended all plans to vote in the Dem primaries altogether

[Peter the Lefty]

1952: Primary: Truman; General: Stevenson

Truman didn't run in 1952, I don't think.

Only at the beginning.  After Kefauver kicked his @$$ (I'm not sure if he actually won or just came really close) in the NH primary, he pulled out.