The best highlander deck now by far is hunter.
Rogue is good too but it is worse than full Galakrond deck and suffer too much vs hunters and have a lot of them in the ladder.
Mage is bad, don't have the tricks of rogue but share the same weakness, lack of healing and survavility.
Warlock have some decks but the highlander route is weak, go aggro or control but don't highlander.
Thanks for the reply. I thought mage might be doing better now with Reno but he might just be too RNG.