i rather choose bank because i feel its more secure. I use bitcoin for my investment and after that i cashout and deposit to my bank account to secure my money.
There is no doubt that the bank is much secured because it has insurance of your money and also there are policies that you are the only one who can ask about the details of your account. while in bitcoin the dev will control your money and you do not know who they are.
Mee to,my money in bank then i will it the most safe place for my money and surely its the most safe place to hold our money rather than holding bitcoins in the wallet.Bitcoin wallets can be hacked and we could go no where if out bitcoins in wallet are stolen.So whenever i have some good amount of bitcoin i always convert them to fiat and then withdraw to my bank account.