You wrote "Hermione Granger", so it is not a severe case of celebrity crush. How do you feel about her source material (I didn't read HP past the third book and assume that starting at the fifth it is purely a cash grab and lacking in character development), and the fact that in her source material she is a married woman? Also I would like to hear how is you head cannon organized? BTW, I also have a "western waifu", so I can relate to you.
This is purely fantastic, sir!
I don't remember if he had any in-depth character in the movie, but the actor that portrayed him is very charismatic and so is the character.