I've only romanced Dorian, but I really like him. His companion quest was interesting to see how his sexuality is a defining characteristic for him. I love that I was able to get him to want a more long-term relationship. His flirting is fantastic. Very cute and very sassy. In general, I'm pleased with him. Outside of the romance, he's just a really fun character in general. I think Gaider really did a great job with him. He's a great character and probably my favorite DA romance so far. (But not my favorite Bioware romance).
I haven't romanced Bull yet, but I like him as BFF. He is part of my dragon hunting team (we've only got three more to go!). His personal quest was a little weak for me. I'm interested to see if I enjoy him more as a romance option. He's definitely a fun character, but he's middle of the road for me. I'm not thrilled that he's a total top (and vocal about it too), but I'll deal with that. Not the end of the world. I'm glad that they included a guy like him for us gay guys. We've been getting "pretty" guys up to this point. They were all thin with longish hair. Blech. I'll take a big strapping guy like Bull any day of the week. I've got a scrappy little dwarf rogue already created and just waiting to #ridethebull. I'll report back when I do.
Sera is tricky one. I kind of hated her at first, but she's definitely grown on me. Since they didn't give us a gay KISA, my qunari is filling that role and KISA (knight in shining armor) isn't really Sera's thing. He's a little too serious and stuffy for her, so we don't get along so well, especially at first. But she's growing on me over time and I can imagine that if I created a character with her in mind, I would probably enjoy it. I actually like the way she looks. Her whole styling is on point (including the hair) and I think she's attractive in an unconventional way. I have a lady dwarf Carta enforcer character who I'm about to get started with and I am not completely ruling out going with Sera in this romance. I'll have to see how they hit it off.
Josephine is a little 'ho hum' or 'meh' for me. She's fine, but nothing special. I think she's boring. I actually skipped some of her dialogue about Antiva because it just wouldn't end. I agree with her as far as politics, but I have no interest in her beyond being my diplomat. I originally thought for sure that she would be my lady dwarf's romance, but I just am not even remotely interested in her enough to pursue that. But she's fine. I guess. I do owe her a debt of gratitude for gambling Cullen out of his clothes. That one moment did kind of make her a little genius for me.
In general, I'm beyond pleased with the LGBT characters this game. They are a wide variety. Some are a bit cliche. Some are totally not stereotypes at all. Krem is also a great character, so I don't want to ignore him in this conversation, even though he's not a romance. I commend the DA team for this and can't wait to see what they give us next.
Hopefully a gay KISA, dammit! And a L or B lady dwarf or qunari would be amazing as well!