BigONE is an exchange that is backed by the blockchain investment firm INBlockchain; an influential investment company that has also invested in EOS, ZCash, Steemit, and other blockchain projects. Several of the companies in INBlockchain's portfolio, that have tokens, are traded on BigOne. BigONE's influential investors give the exchange a high degree of financial stability. The platform is known for its interactive crypto charts and trading tools.

Trading Fee: 0.1%
Withdrawal Fee: 0.002 BTC
Number of Tokens/Coins: 76

BigONE has its own token (BIG) that gives holders a discount on trading fees

Tokens is developing a cryptocurrency exchange for ERC20 tokens that will be powered by their native Dynamic Trading Rights token. Their exchange places a strong emphasis on community driven governance. They have developed a mechanism that allows DTR token holders to be consulted about the future direction of their trading platform and what additional token pairs will be listed.

CEX.io is a British company that changed its focus from mining into becoming a cryptocurrency exchange. CEX has made an effort to add many coins, and boasts of fill-or-kill (FOK) orders that allow for some of the industry’s fastest trading, but it has a poor record on privacy and transparency that should give pause to traders.
The exchange’s fill-or-kill (FOK) orders are very fast, but come at a steep 7% fee. The mobile application is easy to use, and there is also an API integration. CEX is a regulated exchange that complies with all KYC and ALM laws, so they are able to accommodate several funding options, including credit cards and bank transfers.
The majority of CEX.io’s trading volume is done with bitcoin, and although they have made an effort to add more coins, this exchange simply does not have the trading options that others do. The low trading volume of other major coins provides limited liquidity for most traders.
Trading fees vary depending on trading volume between 0.16%-0.25%.Bank transfers are free and withdrawal fees are lower compared to their competitors, but transfers can take up to 20 days.
Although CEX.io is easy to use and allows for very fast crypto purchases, it has high fees, delayed withdrawal times, and a poor record on privacy/transparency.