"Elizabeth Warren, not Clinton, has taken on Wall Street, picked fights with prominent Republicans, and eloquently voiced the concerns of American around the country.
The biggest advantage Elizabeth Warren has over any competition is that she's the "hottest" politician in Washington. According to a recent Politico article, Warren ranks ahead of Clinton, as well as her possible Republican challengers in a Quinnipiac University poll"
Also there is a lot of political baggage with the Clintons, that will most likely be exploited in the Predisential election should Hillary win the nomination, that Valerie Jarrett (Senior Advisor to President Obama) has quite well pointed out. According to Ms. Jarrett Bill Clinton has led an out-of-control post presidential life, jetting around the world on Billionaire Pal Ron Burkle's custom converted Boeing 757, nicknamed Air F**k One, with a scandalous entourage of skirt chasers; being involved in unscrupulous business deals with Vinod Gupta, a wealthy Nebraska bundler, who has raised hundreds of thousands of dollars for Bill and Hillary's political campaigns; and how Bill has carried numerous affairs with countless socialites, female politicians, actresses, wives of fund raisers, and assorted bar girls.
Valerie Jarret has also criticized the sloppy way the Clinton Power Couple mix philanthropy through the Bill, Hillary and Chelsea Clinton Foundation with the private business interests of the Clinton's biggest donors.
Elizabeth Warren does not have the ethics problems that will certainly be highlighted by the Republicans should Hillary garner the nomination. Bill and Hillary are damaged goods. Elizabeth Warren is not.