I'd give to Poloniex another try... The owner seems honest, and it is a very rare quality today in bitcoinland
I agree with Pompobit. I've had coins taken from exchanges only to see the devs either bail or completely ignore any requests to return them. I sent 180 million IFC to Coins-e months back and to this day they have never been credited to my account, the idiot who runs Coins-e is a scam **** who refuses to communicate.
That guy has no business running an exchange. I digress...
Tristan has done a damn good job of keeping everyone informed of the situation at poloniex. Yes, it sucks that coins were stolen but at least he didn't close up shop and run away. The guy has balls and moral fiber, very rare in crypto. Imagine if Karpeles had told everyone of the problems at Gox from the get-go and then asked the community for their help and support in fixing things... wow, perhaps that idiot wouldn't have lost his exchange and $millions in customers BTC. Thinking back I'm pretty sure almost every sinlge exchange has had coins stolen at one time or another, the big boys btc-e and mtgox included.
I'll give poloniex another chance
if he can get everything running smoothly again. Tristan and the security expert he hires will probably end up making it one of the most secure exchanges around.