Which bank stocks do you believe will be the safest if the banking situation becomes worse?

Which bank stocks do you think would be the most stable if the current banking situation becomes worse? For example, if another bank collapses and such. By stable I mean the having the stock price stay relatively the same without much downward movement. $The Toronto-Dominion Bank (TD.CA)$ $Bank of Nova Scotia (BNS.CA)$ $Bank of Montreal (BMO.CA)$ $Royal Bank of Canada (RY.CA)$ $Canadian Imperial Bank of Commerce (CM.CA)$