Best class to duo with Cleric?

[Raev]

If you want to get your lady off in a corner by yourselves, than as mentioned Enchanter is the best choice by a large margin. 2nd best is probably Mage, although that puts a lot more pressure on her to CC/root etc. If you wish to play a melee class, there is a reason everyone and their brother has a monk. With self haste and cheap weapons monks do far more damage than warriors.

That said, I feel like people answer the 'best duo' question far too narrowly. For example, ROG/CLR is a completely reasonable duo imo. Sure, you'll suck balls by yourselves. But you fill your friends list with all the good enchanters and bards and tanks you meet and go from there. Since Cleric is such a great group class, really anything would work if you are willing to put in a little time with /who.

P.S. IMO Vex Warriors are still the best group tanks. Unfortunately a) getting good gear is very difficult and b) people are completely unwilling to stop facerolling their keyboards in order to mitigate their mediocre threat. Enchanters need to blur or root, shamans need to either tank a bit or hold off on slow, etc. If you can get gear and train your groupmates adequately, Warriors provide the best dps (inb4 some moron talks about how tank DPS is pointless, a 6-man group with a well-geared warrior will do 10% more damage than one with a Paladin or SK) and also have discs for boss mobs.