ECN vs futures

Is really ECN the best way to trade forex? Maybe better than with MM:s. But better than forex futures? To trade 1 standardlot with ECN the commission are about $ 13,4 - to trade 1 contract Euro FX, costs about $ 5 in commission. The spread for ECN and Euro FX are about the same, but the commission to trade ECN are higher. So why trade ECN instead of forex futures?

If you only want to trade Euro-FX and Yen futures, i would agree. Good fee-structure, highly liquid, and also the interest is 100% priced in, whereas on spot the broker usually takes a cut there too.