Blockchain, from personal view, as I have used both for a long time. The transactions are easier and after studying the protocols, I have seen that blockchain.info is the best, even security wise. Also, Coinbase is an exchange, that puts your money at higher risk.
Some days ago i transfer bitcoin blockchain to coinbase and thay cut my lots of btc as a fee 
..After which day i dont use blockchain..
Thay cut my 1 doller as a fee
I didnt say that the transaction fees are less. But what is the point if you lose all your money, which might happen in the case of Coinbase?
Blockchain is more secure, Suppose you have 1 BTC in your wallet, if its blockchain, blockchain might take 1 $ (0.0014 BTC) as transaction, but if its coinbase, you might one fine day open your wallet and find that your 1 BTC ($712) is totally missing (maybe due to protocol breach or due to the fact that keeping money in exchanges is riskier and Coinbase IS an exchnage). So the choice is yours, do you want to have a high chance of using $1 extra when you transact or do you want an 67% chance of losing your $712 ?
