Best partner for SK

[Esheon]

I second the shaman or druid ^^^

For non-healers, rogue works well with any class that can fear kite, and any healer would be happy to join that group. A ranger can put out dps and do minor healing, a wizzie or mage can burn it down as soon as it starts to run. There's also enchanter for stun/mez/mana, and again it would be very easy to get a healer to join (I did SK/enc/druid last week and it was great... 2 charmed pets and little healing required).

I would say SK could make an effective duo with any non-tank or non-necro (dots not stacking might hurt that combo). Just pick a dps class and fear kite or take a healer and tank it.