Which exchange platorms are the most convinient for you?
1. Bittrex
2. Binance
3. Poloniex
4. Bitfinex
5. HitBTC
6. Kucoin
I do not think one of your six lists is the best. Hitbtc is a spoiled exchange site. In the remaining five website That I can give vote
poloniex 50% vote.
Bittrex is 80%,
75% Binance,
75% Bitfinex,
and Kucoin is well improving.