When I rolled my DK team, I had planned on a 32/3/36 build, however, when I played my first DK solo to 76, I was almost pure Unholy, with the tiniest splash of blood and I loved it. I never had issues with healing. But, what's good for normal PvE and what's good for attempting heroics are two different things. I'm torn at the moment, my heart says unholy, my head says hybrid.