My favorite combo for PF evil clerics is the Negative Energy Master, which is a (Typically idealistic in worship) (Un)holy Warrior variant, which removes your domains (A bit of a gutpunch for PF clerics, who get nice abilities) in return for d10 HD and full BAB (And if you really wanna haggle with the DM for flavor, free heavy armor proficiency). Add in Selective Channeling, an Extra Channel if you think you're lacking in that department, Improved Channel to pump up the save DC of your channel by 2, and take Channel Smite. Supplement this with Command Undead, possibly Spell Focus: Necromancy, and possibly Smiting Spell from PHB II if your DM allows it, which lets you channel spells (Particularly negative energy spells) into your weapon for +1 level adjustment.