Yet another poll confirms that former Secretary of State Hillary Rodham Clinton is one of the most -- if not the most -- popular politicians in Washington right now.

Hillary Clinton is more popular than any potential 2012 rival. (Linda Davidson/Washington Post)

In a Quinnipiac survey conducted a week after she stepped down from her post as the chief U.S. diplomat, 61 percent of American voters view Clinton favorably, while only 34 percent view her unfavorably. President Obama's favorability rating is split right down the middle: 46 percent favorable, 45 percent unfavorable. Vice President Biden, who could run for president in 2016, does a bit better than Obama, at 46 to 41 percent.

Of the potential Republican candidates, Sen. Marco Rubio (Fla.) fares best, with a 27 to 15 percent favorability rating, but 57 percent of Americans didn't know enough about him to form an opinion. Former Florida governor Jeb Bush is viewed favorably by 25 percent of registered voters and unfavorably by 29 percent. Rep. Paul Ryan (R-Wis.) is viewed favorably by 34 percent and unfavorably by 36 percent.

Numerous polls have found that Clinton is incredibly popular right now, which might play a role in her thinking as she decides what to do next.