Me, I'll pick a big market where those tokens that I like to trade is listed there. Why? Its more safer to trade on an exchange that has an activity and you can be sure of the event will happened and even pumps that will occur is visible. Unlike trading and investing on some ICOs which only listed on small exchange that has been paid low. Pick binance, bithumb, bittrex exchangers for doing somw trading youll love the volume movements.