Our guy!! Joe Biden!! Others mentioned: Jim Webb, Gov Kathleen Sebilius -KS, Gov Ted Strickland -OH, Sen. Ken Salazar -CO, Gov. Janet Napolitano -AZ, Gov. Brian Schweitzer -MT,then there is the bench as they call it.
JOE BIDEN
The Senate has its windbags, but few so windy as Joe Biden. Over the course of the 2008 campaign, however, Biden emerged as a serious national figure. He stopped making gaffes, stopped running past the red time's-up lights, and started making sense. He dominated the foreign-policy sections of the debates, angrily, passionately, and above all, confidently making the case against neoconservatism. He probably had the best line of the campaign when he said of Rudy Giuliani, "There's only three things he mentions in a sentence -- a noun, a verb, and 9-11."
Increasingly, Biden became not just a respected presence on the stage, but the only candidate making a concise case for the Democrats on international affairs. Where the other candidates responded to questions of national security with passively phrased expressions of sorrow about the regrettable policies of the Republicans, Biden responded with unadulterated contempt for the neocons who had steered the country so determinedly into a ditch. Of Bush, he said, simply, "This guy is brain dead." Then continued: "The next time I hear a Republican talk about 'us being tough on terror' -- give me a break!"
Biden's self-assuredness -- some would call it cockiness -- on foreign affairs is exactly what the Democrats need. No more passive voice. No more convoluted statements about the Bush administration's well-intentioned but poorly managed policies. In reply to the Republicans' inevitable attempt to distract from their failures and accuse the Democrats of weakness and lack of resolve, the Democratic tickets need a simple, clear voice saying what the voters already sense: "Give us a break!"
-- Ezra Klein
http://www.prospect.org/cs/articles?article=the_2008_veepstakes