Death, Berserker, Infernal, Angelic and Sigon.

Death is good... great, in fact.

Berserker is okay till Act 2... the damage is too low, and the bonuses is just gravy.

Infernal is alright for a necro, but can get much better when he hits higher level. Easily.

Angelic set I once used on a druid... elemental druid. It was pretty nice. (because I don't go melee) Angelic Wing is a great ammy with the bonuses.

Sigon I once used till nightmare act 5 with a paladin.