I must admit, if you were to conduct a search on Google right now, it would probably reveal that BitForex is the most active and quick based on SEO ranking. However, users' preferences should be taken into account when choosing the fastest cryptocurrency exchange.

Majority would argue it to be Binance, because it controls the largest share of the daily trading volume and is the most populous exchange.

In Africa, many would insist on Quidax because it allows them to quickly deposit and withdraw fiat using p2p, buy and sell on the spot, all within 5 minutes. Hence, it's a matter of personal choice.