I have been reading more stories since I am trying to write some myself and have noticed that most center on Dalish Mage/Cullen (which my first one was too, but that's more because she is the one I am playing right now). The ones that are with our lovely human Quizzy are almost all Mage too.
Yeah, I was poking around the BSN recently looking for more character threads to hang out in and saw someone complaining that all Cullen fans only ship Trevelyan and hate Cullen x elves... I was like, are we reading the same AO3 / tumblr / devart / etc.?
I would never hate on anyone else's ship, and in fact I think all but one of my favorite fanfics are Cullen x non-mage Hawke, but I personally only ship him with Circle mages because I'm pretty anti-Circle (for reasons relating to how my Amell canon Warden and my mage second Hawke were treated reminding me of some real life situations I've been in) and if my favorite character since DA:O Hour 2 ended up giving the worst of himself to Circle mages by the end of that game and for most of DA2, I prefer to "live" in a worldstate where he also gave the best of himself to one in DA:I. Dalish mages are respected by their people for their magic, so they don't do it for me in this case.
Elves are my least favorite race to play as because in D&D / Pathfinder they're the Perfect, Tall, Beautiful, Long-Lived, Stat-Boosted, Lithe race that everyone wants to play as, and it's hard to get that taste out of my mouth and remember everything but "beautiful and lithe" is out for Dragon Age. They're more interesting to me in DA because of that, and I bumped Lavellan up to my second run because there's so much cool elven lore stuff in DA:I, but as a tallish and muscular person, I'm still looking at her running at the front of the screen and missing my Trevelyan looking more like me (or better yet my Shepard looking pretty much like me) and less like a typical female game character.
(EDIT to clarify: and just because they're my least favorite doesn't mean I don't like them! Elgar'nan vallaslin alone would have been reason enough for me to roll one. Just a little more excited for my Qunari and Dorf runs is all. SECOND EDIT: Not that I'm imaginative enough for those to work for me as self-inserts either, just that Qunari have no D&D baggage and my ideas and feelings about dwarves are pretty much entirely inherited from Aimo's tumblr.)