The surprised emoji seems like it should be a wow emoji. I feel like there needs to be a 'wow' as in wow, that's incredible emoji and a wow, as in, "just wow, I'm speechless, I can't believe you just said that" emoji.
Also ABC could be, this is so elemental, kind of a nice 'duh' emoji, but alas it is for the few on here who are annoyed enough about someone who didn't use spell check's advice? Their, there, they're, is up there in my top 10 "gets under my skin" spelling errors, but I seriously wouldn't use the ABC on a post unless I was really having a bad day.
I am glad you brought this up.