BlackRock’s (NYSE: BLK) iShares family recaptured the ETF inflow title from Vanguard in 2012 but most respondents to a poll believe Vanguard will take back the crown this year or next.

According to an poll this week, 49% of respondents think Vanguard will not get beaten by iShares in 2013, the most popular response.

Meanwhile, 21% said Vanguard will regain the top spot from iShares, but probably not this year.

Finally, 27% said iShares will remain the top-selling ETF lineup this year, according to the Ignites poll. Vanguard topped the ETF sales rankings in 2010 and 2011.

According to Morningstar data, the iShares U.S. ETF business gathered inflows of $60.7 billion in 2012, taking total assets to $556 billion for a market share of 42.2%. [iShares Takes Back the ETF Inflow Crown]

Vanguard saw inflows of $52.7 billion, lifting its total ETF assets to $246 billion.

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