myetherwallet.com or Metamask is the best Ethereum wallet, you can also store all ERC20 tokens on myetherwallet.com or Metamask. These wallets are decentralized and you have full control of your wallet. As you are a newbie i recommend you to learn about how to secure your wallet and your fund as soon as possible.
These both are pretty good, but using them is like one of the steps towards security of your funds.
If you truly care about security you will end up with something like paper wallet and/or cold hardware storage