Jamie Dimon

JPMorgan Chase

Jamie Dimon has earned his bragging rights this year. He has never admitted to gunning for Citigroup, JPMorgan's much larger competitor, where Dimon was ousted by his former boss and mentor, Sanford Weill. But the JPMorgan CEO clearly has outdone his old firm in circumventing the worst of the mortgage meltdown: Citi has been hit by at least $8 billion in losses, its stock is down some 40%, and former CEO Chuck Prince got the boot. By contrast, Dimon's operation booked only $1.3 billion in losses in its leveraged loan portfolio, the stock is down just 4%, and most of the bank's exposure to collateralized debt obligations is in the form of commercial loans, not subprime mortgages.