BitFinex is a bitcoin to fiat exchange, a margin trading exchange, and a liquidity provider. The platform offers a number of features that expand the financial positions you can take - for example the ability to short Bitcoin via margin trading.
The exchange also offers a set of other cryptos apart from bitcoin such as Litecoin and Ethereum.
Deposits and withdrawals take place via the standard bank transfer means with fees of 0.1% and a minimum of $20. Bitcoin and Litecoin are free.
BitFinex takes security seriously and have moved from a hot wallet cold wallet set up to segregating customer funds where each user has access to their own wallet which they can review on the blockchain.
Bitfinex was hacked on 03 August 2016 and around 120,000 BTC were stolen.
Fee of 0.1% for most trades

Bibox is an exchange based in China. The platform offers a range of currency pairs and has a native Bibox token, that gives users a 50% discount on trading fees.
Bibox is aiming to position itself as an AI enhanced crypto exchange. It delivers unified market entry and exit data that has been screened and filtered. This provides users with optimal deals on the most pairings available. This is a key feature for the highly volatile crypto market, that has many arbitrage opportunities.
Bibox has a number of security features such as, Google and SMS Authentication, as well as a quadruple layer of passwords. The site also has a complete login record to keep track of account activity.

Blockport is a social crypto exchange with a hybrid decentralized architecture. Its social trading features allow users to follow or copy other traders. Traders whose activity is followed are rewarded with Ethereum-based BPT tokens. Token holders also receive discounts on trading fees.

Trading Fees: 0.3%
Withdrawal Fees: 0.0005 BTC, 0.01 ETH