Which Normal Sets are worth trying on low level characters?

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.