For online web wallets i would prefer multi sig wallets (i think blocktrail has this feature) and for offline i would suggest Trezor(very expensive)
Actually block chain is having good feature to keep secure BTC in your wallet. it have two time authentication so wallet will safe for sure and u can use coinbase wallet also it also have good feature in it you can find in google play store itself
Electrum, trezor, greenaddress.it all has 2FA feature. Using blockchain.info shouldn't be a choice at all. The way that they implement 2FA isn't safe. 2FA protects you from the client side attacks, bruteforce etc. But it doesn't protect you if an employee has access to the server storing the encrypted wallet.