Yobit - A supposedly russian exchange that is not registered anywhere so they can say f*** you, we can't process your withdrawal request after a month.
Hitbtc - You can't trade small amount and they might keep asking for a hell lot of documents and even origin of your funds before they process your withdrawal if amount involved is large.
I would suggest you to only use binance which have enough liquidity and you don't have to pass KYC to trade small amount.
Of course binance is much better but there are coins that are just listed in hitbtc. I find no issues with hitbtc after withdrawing about $2500, its not so much alarming I guess but I think the exchange is performing good already. Bubbletone which had recently finished their ICO are going to be first listed in on hitbtc, more people will be trading there soon.
For Yobit my complain is just the wallet maintenance, you can't trust the guys to update their wallets so you are left with altcoins stuck on them.