Hmmm, let's see.

My preferred party setup is pretty close to Del Murder's except I would switch out RDM for BRD or COR. My main concern as a WHM is having the lovely lovely support that BRDs, CORs, and RDMs provide. My personal preference for support jobs would be BRD and COR. The damage melee spots I don't really have much preference for. Anyone who is decent at their job can fill those spots and I wouldn't really care much. But I just looove BRD and COR.