I'm new to the forum so I don't think I can vote in that poll.
However, I'm a zeroblock customer and would love to see stop loss orders on the platform. At the moment I feel I can't look away even for an hour if I have an open order. For that reason my vote is Bitfinex, as I know they do stop loss within their API. Although, stoploss for bitstamp would be amazing, I'm not sure they offer that at all?
Many thanks, love the platform.
- Darren