For many the best Bitcoinwallet is .blockchain.com. It is a very popular multicurrency wallet including Bitcoin wallet. I think that .blockchain.com is very comfortable and safe and many people use this wallet.
Maybe it's easy to use but it's not as safe as you think. There's no 100% guarantee that they do not hold your keys and you know what the good old sayin' is about private keys and your Bitcoins. 
Convenience almost always comes with a compromise, and although Blockchain has been around for a very long time, I'd rather not be lazy and start moving my coins to safer wallets such as Electrum/Mycellium.