So I think Myetherwallet is the best option for eth store.You can use It.
I don't know why so many people share this misconception that eth is store in a wallet. It is stored completely secure on the blockchain while wallet is used only in order to transfer the funds. Of course the most safe wallet is Mist. For convenience, I bet MEW is a very good choice too. Parity programmers should close their business cause they are pathetic, so many fails...
Same thing with bitcoin.
People still don't seem to know what the difference between a wallet and an address is