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.
The security of your coins is fully depending on how you are setting up and securing everything. If you have poor security on your PC for example, and you have just an average password on your wallet file, then of course the chance of a hacker seizing your wallet file, and successfully brute forcing it, will be high.