I just wanted to answer you based on the perspective how I am selecting any exchange. Only the availability of a new coin is the core reason to choose a new exchange. After the news of one new coin/token gets listing out into an exchange, I go for search to find out what are the exchanges are available for that particular new asset.

When two or more exchanges are available for the particular new asset, I will be choosing the most popular one rather than going for a new one. I'm always afraid of clearing KYC. It is kind of allergic to myself as I value my privacy more than exposing myself to them for the sake of withdrawing few dollars.

Honestly, I never bother about what are the trading fees and what are the extra features on exchange is offering. Because I'm not the continuous trader only to convert my new assets into btc/eth/ltc, I need for exchanges.