For me It's actually good to use a topped exchanges since it is more popular there are a many people who wants to used a top rated exchanges. Aside from bigger in volume and liquidity the transaction fees is quite important for all traders in cryptocurrency. Because some exchange has a lower fees compared to others so the possibility for using the higher fees needed is becoming lessen that's why people tends to choose a good exchange with a good and lower fees rate. But in my own experienced hitbtc is one of the good exchange that I ever had to used it is more efficient and organized. However I didn't say that others are not good but I'll try it next time when I would make trading and investing.