No. Nationalization would not work for any US bank. The negatives of any sort of full "Federal take over" would be enormous.
Worst case their would be some sort of neo-Continental National Bank of Illinois --
http://www.fdic.gov/bank/historical/...%20Illinois%27
A dozen or so pages into that link (it is a chapeterized think, so look for page 249) it is explained that CNBI was not technically speaking just "too big to fail" but more accurately "too big to liquidate in an normal fashion" (which is what the FDIC does with even "biggish" banks like IndyMac when they become woefully under fundeed).
In a "neo CNBI" scenario I could see FIDC and FRB over seers wading in and carving out the "protected depositors" that have < $250,000 and allowing some normal "retail banking" operations to continue, while closing down more and more of the 'correspondant' banking operations that BofA and/or Citi had entered into as more of a "banker to banks and investors" kind of thing. The probably is that the "exotics" (CDSs, MBSs, CDOs and other stuff that is even less well understood) would have to be undone in an orderly way. I can't see how that would happen for JUST these guys and other banks that were not as reckless would be left to stew in their own poo as it were... The "dirty diapers" can only be changed for all the banks or none. The time frame to set up "the mother of all SPIV" is probably 6-8 months MINIMUM (which is why it did not happen prior to the elections). Even an orderly auction process would need at least several weeks of torture. Once ALL the banks "bring out their dead" the "bad bank" should prevent the house of cards from collapsing...