According to this recently released IMF paper big banks have gotten bigger and we might get screwed again. They use terms like "Too Important to Fail" and "Systemically Important Financial Institutions," but we can say politically connected banks that take advantage of their size to pay big bonuses when times are good and still pay big bonuses when times are bad—read bankrupt— thanks to an ability to stick the check to the government, to tax payers.
The number of these monster banks has grown when looking at absolute size, interconnectedness and substitutability: