In order of most to least excited:
1. Blackwall -- I feel we know the least about him, so I'm still hungry for more info. Why is he traveling alone when we meet him? Has he separated from the Wardens or is he just at odds with how they do things? And will my inquisitor be spending his nights wrapped up on those big beefy arms? Okay that last one is more of a personal question.
2. Sera -- Nothing, and I mean NOTHING I've learned about her has disappointed me. I love her look, her style, her voice, her personality, AND she's available to my female inquisitor. Yay! Even knowing all that, I'm STILL curious about her. I want to know more.
3. Iron Bull -- This guy is a contradiction: an adherent of the Qun yet someone who likes to party, laugh, and have a good time? I need to know more, please. Also, potential romance for my male inquisitor, perhaps? Yes, please?
4. Cole -- I've been curious since Asunder, and now even more so. Doesn't hurt that I think he's adorable.
5. Solas -- He sounds really sweet, an introvert and a scholar, and the one person who seems to befriend Cole. His nerdiness reminds me of myself, and I can relate to someone who gets lost in his research, but gets excited about it, too.
6. Dorian -- We're getting to the characters I don't really care for now. It isn't that I dislike Dorian; true, I dislike his look, but as for his personality, I know nothing about it. But am I interested in knowing more about him? Not really. He's from Tevinter, a country I view with narrowed eyes, being a Fenris fan. I guess I probably resent him taking up a romance slot for my inquisitor, too.
7. Vivienne -- Probably because she's been around the longest, I'm the least interested in her. I'm sure she'll be a great character though.
8. Varric -- No interest in him at all; he's only above Cassandra because I'm mildly curious to see how he's changed since DA2 and whether or not the Bianca thing will be settled.
9. Cassandra -- Just not interested in her at all. Don't dislike her! Just not interested.
In short, I like them all, but some I'm more interested in than others.