Playing as a mage Hawke in DA2.

I have all kind of mage (except self-hating pro-templar), blood, force, and spirit healer too (combinations: elemental-blood-primal, force-primal-spirit healer, force-blood-primal. Blood magic seems useful for mind manipulation, but the implementation is lame – no one realize if Hawke use it, nor from the close friends. My Hawke's specc just a little bit depends on friendship or rivalry of Merrill, Fenris (with him I prefer the rivalry path) or Anders (ofc I have only friendly relationship with him, because I don't have self-hating, pto-templar mage). Carver is mostly Templar (and rival),this maybe can help (or could put him in trouble).
I don't like to use robes (I have Hawke, who used, but I prefer rogue-like mage Hawkes)
My main party: Carver/Fenris, Anders, Carver/Varric. (I dont like bribe, but maybe useful) 
Sarcastic (mixed some agressive answers, and if need, then diplomatic – not so much), and mostly hot-headed/provocative (motto: you need my help, I don't need to be nice, but I can, if I want).

I don't use mods yet, just my imagination, and don't care about this is believable or not really believable. okay, a bit.

You?

I currently play a mage Hawke and it's fun. I have the mod for hiding the weapons too. And I never ever wear robes, they are just ugly and not at all practical. There are so many beautiful armor mods out there, that I seldom use an armor from the vanilla game anymore.
During the encounter with Cullen, she does not use magic and takes only non-magical companions with her. I roleplay that she actually fight with the staff (I normally give her a very plain looking staff - the kind, Little John might have used as a weapon ).

I don't think, that anyone, you met apart from Cullen would either be able to say something against mage Hawke (Alrik is dead in the end, Sister Petrice has too much to cover up and could not risk to rat Hawke out to the templars ...) or want to do something against Hawke, when she saved them (or their realtives, like the Viscount).

About Bloodmagic: I never use it - I find it creepy and evil. Even if you don't use any blood apart from your own it's shady. And I'm not particulary fond of Merrill. I like her voice actress, the wonderful Eve Myles, though.

BUT there are some good reasons, a bloodmage Hawke and/or Merrill best buddy or lover can still detest bloodmagic. A lot happens during the end of DA2 and the beginning of DAI - and like Sah291 mentioned, there are different kinds of blood magic. Hawke might be the more careful type and Merrill is just plain clueless about the dangers of bloodmagic. She wasn't exactly responsible with her bloodmagic (and can be the cause for a lot of death),but I guess, after her personal quest in act 3, she will change her view a bit (if I remember correctly, she even said so to Hawke). Nevertheless, neither Merrill nor Hawke are anywhere near a Magister like Danarius or his evil pupil (forgot her name) or some of the more ruthless and powerhungry bloodmages, you meet in the story (for example during 'Enemy among us').

I like playing as mage Hawke. Played a mage more than a warrior or rouge. All my mage playthroughs have supported Meredith. excellent. I have never used the blood magic skill. What my Hawke wears is usually the stuff from the packs I downloaded. I use Isabela, Aveline and Sebastian for my companions.

It really bothers you that I have my mage Hawke support Meredith? But your Hawke is a mage. Yeah. So what. Mages are suppose to support mages. Really? Says who? .

Oh, I did, I rivaled Merrill with a non blood mage Hawke (though by complete accident I swear). My mage was my second character and I thought not giving Merrill the thing Marethari didn't want her to have could prevent things from escalating but instead it gave me permanent rivalry with her. After that, there was no way I was going to romance Merrill like I originally planned to do with that character.

I did have diplomatic personality with that character but it didn't have to do with hiding and not trying to attract attention but that's intresting, never thought of acting diplomatic instead of the other two for that reason but I can see it.

Couldn't play as a Mage Hawke. I could never kill Bethany. Ever.

Most of my Hawkes are mages.

I usually pay attention to the outfit. I'd like Hawke to be anonymous as a mage and prefer appropriate outfits. Before I read this thread, I hadn't heard of a "hide staff" or "hide weapon" mod but I guess it's time to replay DA2 with more mods.

I've also used the "Sophie's Choice" since one of my favorite personal themes in DA2 I like to play out is "the awesome Hawke mage sisters". Unfortunately, it's impossible to have that be reflected in dialogue, so the mod is not as useful as you might think.

As for blood magic, my Hawkes aren't usually blood mages but neither do they have an issue with it, so DAI-Hawke is annoyingly out of character with her blanket condemnation. It's DAI's problem though, not DA2's.

I almost always play as a mage (see: Gameplay and Story Segregation). I don't use mods to hide robes or weapons; I just assume Hawke is wearing something more neutral and isn't flaunting their staff/magic everywhere.

To me it's the same process that makes me not question why no one in my party ages or changes their clothes in a decade, why Fenris's mansion is eternally full of perfectly preserved corpses, why the weather never changes, and why my entire party doesn't instantly turn on me when I make truly heinous decisions. Sometimes you just have to shrug and roll with it.

My Hawkes are usually iffy about blood magic and still grumpy with the Wardens over the whole Corypheus/parents-held-hostage debacle, so no inconsistencies for me.

Poor Carver, how many people dislike him! I now started a warrior, because I want to find some interesting in Bethany. But for now still Carver is winning me. Just give him a chance, you will see, how good brother he is.

This is Chantry's fault.
1. Bad choice of location for the Circle: weakened Veil.
2. Templars (Meredith's) cruelty in Kirkwall.
3. Acquiescence of Elthina.

You dont need to use robes in the whole game: Mage Hawke can appear as a rogue, and don't need dress mods.

No, these are mage armors: in Act 1 – base smuggler/mercenary armor, in Act 2 – The Robe of Notorious Pirate, and Ac t3 the Champion Armor. (Maybe not that shiny, but none of them is a robe.)

Act 2, Wounded Coast. Hawke need to save some guards.