I think TradeSatoshi is one of the most respectable exchanges based out of the UK. Of course it does not look pretty.

stocks.exchange is made by a guy named Ryan. Doesnt look like he cares much about the project but at least its a real person behind it. It took me a week to withdraw my coins which meanwhile dropped to half in price so he did cost me a lot of money as I tried to do arbitrage (which probably he did with my money).

Also Cryptopia is respectable in my opinion, based out of New Zealand. But they dont have BTCZ listed.

bter.com closed because of Chinese pressure and is now called gate.io. I used it years ago and never had an issue. They continuously emailed me warning me about bter closing and asked me to remove all my coins. I give them a lot of credit for that.

The next exchange to walk away with everyone's money claiming they got "hacked" is going to be HITBTC, Bittrex or Bitfinex.