Why is Binance the best... I actually don't like how many exchanges you have to be apart of to get these alt-coins... Like I'm seeing something about Vechain coin going up because of some deal they struck with China... But bittrex doesn't have the coin...
From my experience Binance is the most secure and user friendly (in terms of interface). I had problems with the sign up and verification processes with Bitstamp and Gatehub. I also know a few people who had their Gatehub accounts locked out once they had a certain amount of coins in their wallet. Ultimately, the best solution would be the Ledger Nano, but the only problem with that is it doesnt support alot of the newer coins. There will probably be an update for the Ledger though in the near future to enable support for more coins.