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An opinion poll found the Liberal Democrats were more likely to win back voters lost since the 2010 election if Mr Cable replaced Nick Clegg as leader.
According to an Ipsos/MORI survey, Mr Clegg remains marginally the more popular among those who say they will back the party in 2015 by 21% to 19%.
But of all those who did so in 2010, Mr Cable (29%) is considered more than twice as attractive as Mr Clegg (13%).
Among voters as a whole he is also twice as likely to win a Lib Dem vote by 12% to 6%.
That rises to 15% among Labour voters compared with 4% for Mr Clegg.
Ipsos/MORI interviewed a representative sample of 1,006 adults across Britain by telephone between September 15-17.
Nick Clegg said he was happy for the auto tuned remix of his apology for making and breaking a pledge to scrap tuition fees to be released as a single, as he thought it was "a very catchy tune". He told ITV1 's Daybreak:
Deputy Prime Minister Nick Clegg has told Daybreak that it is fair to tax the rich and wealthy.
Liberal Democrat leader Nick Clegg told ITV1 Daybreak:
Business Secretary Vince Cable has given a bleak assessment of the crisis in the eurozone, warning of a "real risk" the single currency could collapse.
The consequences of the disintegration of the eurozone would be "too awful to contemplate", with soaring unemployment and the reappearance of nationalism on the continent.
Speaking at a fringe event at the party's conference in Brighto, Mr Cable said public opinion in Germany may prevent the radical integration needed to bolster the weaker southern European states.
Deputy Prime Minister Nick Clegg during a question and answer session at the Liberal Democrat Annual Conference in Brighton.
He was asked how he can restore confidence back to voters after not breaking promises.
The Liberal Democrats have backed calls urging the coalition Government to give the Independent Police Complaints Commission (IPCC) stronger powers to help "restore the trust" between police forces and the public.
Members at the party's autumn conference in Brighton voted overwhelmingly in favour of a motion noting the IPCC's "increasing difficulties" in investigating police officers and police staff who refuse to be interviewed about complaints.
Lib Dem councillor Duwayne Brooks (Lewisham and North Beckenham) said some investigations into deaths and serious injury drag on for months:
A senior member of Ed Miliband's shadow cabinet said today the Liberal Democrats' influence on the coalition Government had been "benign".
Jon Cruddas, who was appointed in May to oversee Labour's policy review, was speaking at a fringe event at the Lib Dem autumn conference in Brighton:
Nick Clegg's question and answer session is over. He was quizzed on the Leveson report, responding that as long as his recommendations are workable, they should be implemented.
He also faced questions on the economy, welfare, nuclear power and HS2.
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