Now i think that blockchain isnt the most popular.Now i think that modt popular is bleushare because you can exchange your bitcois for about 100 other cryptocurrencies amd you can buy theor shares for dividends.
Stop shilling a site that can't even crack 10 BTC volume a day.
Blockchain is the largest wallet provider at the moment and it isn't even that close. Coinbase is the closest to them, but most people use Coinbase to buy/sell BTC and not as a wallet.