The difference between the 2 classes is pretty minimal. The only real difference I've been able to see is what most people say: Necro's are better at 1v1 encounters, Conjurors are better at group encounters. The only thing I like more about necro's is what their pets look like, other than that, I love my Conjuror. I considered betraying to Necro, but after seeing what Conjurors can bring to the table and the buffs they get etc. I definately plan on sticking with my Conjuror. As far as the difference between the pets go, I don't really know, I was in a group with 2 necro's the other night in FG and my pet parsed higher than either one of theres, we were all in the top 3 but I outparsed them by about 200-300 damage with an adept III pet Adept I agitation. 1 necro had the same, the other one only had app 4 version of Agitation. So, yeah, a lot of mixed info out there, but from ~my~ understanding they are both very good caster classes with not many differences between them. So as far as I can tell and from what I've read, they parse about the same amount of damage end-game, so you just have to look at their "class defining" spells and figure out which ones you like or benefit more from. Just my 02. from a lowbie Conjuror who has spent as many hours reading the Conjuror boards as playing a Conjuror lol.