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

BitForex is a cryptocurrency exchange with headquarters in Singapore. BitForex also has several offices in other countries. It is one of the larger exchanges by trading volume and offers a large variety of trading pairs. Trading and withdrawal fees are similar other exchanges.

Kraken is a US-based cryptocurrency exchange and one of the largest bitcoin exchanges in terms of volume and liquidity.
It provides Bitcoin pricing to the Bloomberg Terminal and has considerable influence on the overall crypto market. Kraken offers a number fiat funding and transfer options.
There are 18 BTC pairs and 16 USD pair to trade
Fees vary depending on the volume - for main trading pairs this is between 0.1-0.35% - however for other less common crypto pairs the range can be as low as 0.05% or as high as 0.75%. There are also 0% fees for some trades.
Withdrawals and deposits are variable depending on the method - although in general all fees are 0.19% with a $20 minimum.