The one who has on top will I be chosen, not an assurance that they will not run but building reputable name is hard these days so I think they will never let their exchanges turns to a fraud.
Bitstamp is my preferred now after switching from Bitfinex after the joke breach security. I called it joke because I never believed in their claims that someone or some groups able to penetrate their security. And what worst, they turned my funds into their own tokens.
You have a point about bitfinex since its a business and i am sure they are using also cloudflare to protect their website about any injection or penetrating their database.. well i agree for now that much better to go in bitstamp 2nd for btc-e..
Then i hope that it will not the same as other exchangers..