Can you tell us specifically the purpose of setting up these polls? We might sort out things rather than asking random thoughts from the community since not all users obviously will participate in the poll.
I mean, people have different preferences and reasons why they are using a specific exchange. For example, Person A wants to trade on Binance but having difficulty to deposit there, therefore, they will use other gateways then will transfer to Binance later on. Another one, Person A wants to buy bitcoin with fiat so dealing with Localbitcoin might be the best method or using a local exchange and so on.....
Volume-wise, Binance is on the top. However, they are a trading platform and not the usual exchange where buy and sell bitcoin is the main service.