Myetherwallet secures you by giving you a private key,
Imtoken secures you by giving you mnemonic phrases, with imtoken version 2, you can also store bitcoin.
Never compromise your account, and ensure to be smart always.
I prefer going for oldies so this is the best options you can get anywhere.
But if you want something else, then you can try meta-mask; they also give you mnemonic phrases,
Or probably try to use Eidoo wallet or trust wallet.
Beware of phishing sites, don't give anyone your private key or mnemonic phrases.