if I have to choose I still choose for the bank because your money is insured if something happens and I also do not trust a unstable currency that can fall down on a day..
I think its too risky to do this!
That's true our money is more safe with the banks as if we our bank account gets hacked then banks will help us in recovering our money but the same is not the case with bitcoin wallet, once bitcoins lost its impossible to recover them.
Those are just one of the things that has to be enhanced by cryptocurrencies although I think some altcoins have better security and i'm pretty sure the best is yet to come. So at the moment banks are more safer but only for safekeeping as it won't do much to enchance your money compared to cryptocurrency. The crypto world is still a work in progress and investing on it yields a big return.