Liara is Bioware's romantic choice. At least it feels so to me. I base it on these things: she has appears in all three games, has the most dialogue, she has her own DLC, her character is most deepened (along with Garrus), Het romantic scenes are the best and longest, you have by far the most contact with her of all (again, along with Garrus), YOu can romance her with both Sexes, Etc.
But that's not what bothers me. Yes, she has the most important role of squadmates in the games. But why is she so more deepened than the other characters? Maybe it's because she is an all three games and you automatically get more info. But that doesn't explain why the romantic scenes are longer, more dialogue and are better (that's just an opinion)
What are your opinions on this??
(Again, it is just a thought)