Personaly i like 5x DPS setups for pve, it will also be better for raiding later. Like the normal 5x elemental shammys etc. Or swap out 1 for a tank. The DK is maybe the nest boxer tank atm. Geting slightly ahead of the prot pally in my eyes as of all the selh healing + healing steams going.Then you can preaty much go full nuke for most of the time and now and then top his HP to max with 4x lesser on him. Also use thunderstorms for pve trash clearing is awsome