A scorecard from a digital marketing measuring firm shows that Bank of America will still hold the bragging rights to the most online-banking customers after the dust settles from the mega-mergers brought on by the financial calamity.

According to Reston, VA-based comScore, BofA’s 24.6 million online customers (including 17.8 million liquid deposit accountholders) still outnumbers the combined online customer base of 21.4 million consumers at JPMorgan Chase, following the net absorption of 9.2 million WAMU customers (not counting any potential overlap). And depending on how the tussle between Citigroup and Wells Fargo over Wachovia turns out, comScore tallies up a net of 17 million customers at Wells/Wachovia, or 18.2 million Citi/Wachovia users.

What the numbers don’t take into account, says comScore, are the eventual online banking numbers Bank of America would add from accountholders at Countrywide and Merrill Lynch.

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