IDEX is a much better alternative, you just have to wait for it to be listed there. Whereas EtherDelta is immediate as long as you know the contract address.

EtherDelta has always been very buggy and laggy. I'm not surprised it gets compromised every second day or so. Make sure you use Metamask and never give out your private keys. And dont transfer to Etherdelta because you see high buy orders, sometimes the orders in the order book are already completed and ED hasn't updated them yet.