I personally use Blockchain.info so I recommend it. It's easy to use.
And like @TMAN said above, I don't recommend using an exchange website as your wallet.
It's not like the Blockchain.info wallet is any different in functionality than an adress on coinbase/poloniex really...
There's no direct access to your private keys, no added functionality such as double spending in the form of replace-by-fees, and blockchain.info could change their source code at any moment, which could possibly compromise your ( encrypted ) private keys/ seeds/ to them.