I found solo/levelling was easiest with a necro lock, as soon as i hit moonshade i spec'd necro and was able to solo rifts and invasions easily. But it quickly became obsolete, and thanks to our terrible mitigation and TWO debateably useless pet classes, it basically becomes necessary to spec into warlock and chloro to survive, so we spend less time dealing damage and more time healing ourselves. With gear it gets easier but its still a little uninspiring. Seeing a rogue warrior or cleric solo anything in EI and then trying to do the same and failing miserably isnt cool.
What i dont understand is why they gave mages 2 pet classes? Only one of them even has synergy with another soul, and they both become obsolete and ineffective quickly. Even the damage dealing pets dont go higher than about 200 dps. Theyre just not good.