I'm still missing the more down to earth companions like Eder, Ajantis, Branwen, Kivan, Keldorn, Jaheira, Valygar, Jan or many others from BG1 and 2.
Good writing is much more important than creative or fantastical characters. If you have too many "special" characters it just becomes a weird menagerie where they compete who's the most creative and undermine the story.
Larian does take the stance that the origin characters are all main characters in their own right. That being said I would appreciate some down-to-earth party members as well.