Bank stocks aren't usually on lists of coveted growth stocks, but legendary investor Warren Buffett has been a big fan of them. He's usually known for picking boring bank stocks because they're flush with cash and are eminently relevant to a growing economy. Plus, they usually pay dividends and are focused on creating shareholder value.But Buffett's holding company, Berkshire Hathaway, also owns some more interesting bank stocks. It was an investor in hot fintech company Nu Holdings (NU -0.49%) even before ...