I would appreciate a virgin path, in the sense that the MC should have full control over who she fucks or not.
To still make it hot, she can peek or experiment without going all the way.
Also, lesbian incest is indeed very rare but very hot as well.
The dominant character I like, but not in the BDSM way. I just like a character who has her own opinions, can handle stuff herself and not be bullied into something she doesn't want. A character like Kelly from Intimate Relations, but I have the feeling she is quite a divisive character. Some really like her, others don't.