I think anko, but they arent together . . .yet :)
anko
He has Anko
* no
Anko
Kakashi
Anko
(Double facepalm) Where did you get that from?
Kakashi,Iruka or zabuza
It is not clear if Kakashi likes Anko in a romantic way. There is no specific information in the series that suggests they have romantic feelings for each other. They do have a history of working together and have a friendly relationship, but it is not confirmed if there are deeper feelings present.
They don't. No honestly, they don't.
Well I'm sure most shinobi of Konoha in Kakashi's generation knew about Orochimaru before he became a traitor. Note that Anko is around Kakashi's age, and he turned against the village and gave her the curse mark before leaving (as Orochimaru was Anko's teacher). So it's likely that Anko, as well as Kakashi and others in their age group, knew of him before he became a traitor.