QFT !
Mages in Thedas are Sorcerers/Mutants who can become abomination when they decide to have extreme feelings. No Wizard I know gets possessed by Demons.
I actually don't mind that they can get possessed by demons. What I hate is Bioware's handling of their suggested lore.
The concept... is that a mage in DA must have strong willpower. This I find very appealing as a requirement. Most people really have no idea what strong willpower is. Being an obstinate a-hole is NOT strong willpower. Being a slave to your emotions is NOT strong willpower.
I liked what DA:O had to say about mages... how mages, despite their phenomenal power were always hunted by forces beyond the world because: "True tests never end." And they shouldn't have... not for player mages, not for NPC mages - but they did (that the "test" for the Warden mage never shows up again is a missed opportunity.)
Connor... Jowan... Uldred... even Zathrian... DA:O sets a standard for mages that requires them to stand up and at LEAST be accountable for their emotions (actually something far more difficult than the mere fact learning of - let's say D&D wizards.) Time and again the mages of DA:O fail... and the consequences are dire. This was good fiction in my opinion.
Why the abomination theme of the Tower of Ferelden was dropped is beyond me. It seemed like a perfect "other evil" foil for the Darkspawn. Those abominations talk about being an abomination as if it's the perfect evolution of spirit and mage... I was sure that this new age would be nigh when spirits poured through the Veil and mages were running amok... but, alas... I spent DA:I fighting Inky, Blinky, Clyde and Pinky all throughout southern Thedas instead.
Then, it seems somewhere along the line someone said: "Wouldn't they be cooler as superheroes!? YEAH!" And then every mage was SURE they were resistant to demons. All the "dangers" were just mere inconveniences for "moar magix!"
A group of radicals hellbent on feeding off their rage who make the MOST suitable finger puppets for an extra-dimensional force intent on invading Thedas... and, nothing. Tossed out for some hackneyed story about victimization.
So... instead of mages who have to "be the best" because being anything else means being demon chow... we have a subculture of malcontents obsessed with their own victimization and each one carrying around a basket of hand grenades. No thank you.
At first it genuinely surprised me that any supposed fan of the "wizard" would like what DA mages had become post DA:O - then, the boards changed my dislike of the new DA mage to outright disdain (I can't say I've ever "hated" something in a video game. Hate is a really strong emotion that requires a LOT of effort... and I simply don't care enough to "hate" DA mages... or elves for that matter.)
NOTE: I like DA:O and DA:I and I tolerate DA:2... disliking where the lore is being taken does not deeply effect my enjoyment of the games. I consider it mostly just pandering to the lowest common denominator.
So... anyway, I always play wizards/mages/whatever... but DA NPC mages? On average they disgust me.
The elves are another matter altogether.