I also vote for the BTC-e. It is one of the biggest and the oldest exchanges. It has never been accused of stealing people’s money or engaging in any sort of malicious behavior by several users of the exchange, moreover, when in 2012 hackers stole 4500 btc (~$40k), the exchange has not been closed and all balances have been returned to the users accounts.
Well, I wouldn't vote for it myself. Even if they're not scammers, their support is dire if you have any problems and I'm not sending any money into a totally unknown black hole regardless of its track record.
And if you want to send fiat there you have to go through ID verification with the third party payment processor before sending anyway. Why bother? It's faster and cheaper to use all the other exchanges. If you're depositing and withdrawing coins only I'd go for Bitfinex as they don't require ID and volume is that much higher.