@Ether Delta

I agree that Ether Delta (and exchanges like it) are probably some of the best DEX iimplementations thus far because they do not use IOUs or derivatives. However, seeing as though you can only trade ERC20 tokens (which are effectively all very risky and volatile investments) they are still not ideal.

I am still awaiting a more optimal DEX that can exchange tokens between different blockchain without IOUs or derivatives.