I have set up both Mangos and Ascent servers and have a decent idea of how to run each. I haven't done much with repacks, but used my own compiles with varying degrees of success.
What is the best overall WoW emu? Mangoes, Ascent, something else all together or some specific repack? Which is the most complete as far as quests and instances working? Which has the most/best features?
I want to hear from EXPERIENCED emu admins/GMs and want specific reasons why you give the answers you chose.