Bitstamp is best EU exchange. But they are trying too hard, this may results in security flaws.
1) they accepts 3 confirmation
2) easy password reset and send via email (just one click, simple for hackers)
3) bot can operate only without 2-factor auth. (high risk)
... still I'm using their services :-)
They also have a buggy trading engine, fucked up orderbook, kinda stealing with the fees via ultra lame implementation, not to mention buggy front end JS and fucked up interface, such that you need 3 open tabs to trade.
The next best exchange. So fuckin sad.