Yes... at least 99% of them, if not 100%.

I was one of the most vocal opponents of Mt Gox here before the crash (check my previous posts), as I was supporting BTC-E. But even I had an account with Gox.

Before the crash, people ridiculed me for saying that BTC-E was more secure than Mt Gox. They were arguing that since Mark Karpeles is known to everyone (as opposed to Alexander and Alexei of BTC-E), he will never steal a dime. Look at what happened in the end.