I play drk and warrior side by side currently but I'd be a fool to choose drk over warrior for the current hard content. I enjoy drks power boosting playstyle more than being a fel cleave cannon. As a MT drk does not have enough emergency situation skills. War can instantly pop 2 different HP skills or even an inner beast for HP+mitigation. Been doing shinryu EX and as a drk I just find myself not being nearly as good or useful to the party but on warrior its a whole nother story. Self sustain on drk is a joke and I hope we don't have to wait till 5.0 to see changes. Hopefully they have just been experimenting with drk up till now to find something that works and will put it into a patch when they can.