ArcEmu or Mangos?

[Ragnaros]

ArcEmu, Mangos or Trinity (Dont really know wat trinitycore is)

Im looking for a stable server that supports most of a bugfree dueling between races and classes. Also some of the raids/instance. (I know nothing is bugfree, but still)

So what am i looking for?

[stoneharry]

Mangos/Trinity aim towards full blizzlike servers, they do not support customisation as well as ArcEmu/Aspire and focus on getting all blizzard stuff to work. So basically go for Mangos/Trinity.