For the record, my answers are:
Yes I have a Dreamwidth account; my user name is beren_writes; I am only posting fic over there (at the moment); my main account is and will remain LiveJournal for the foreseeable future.
Do you have a Dreamwidth account?
No, what's Dreamwidth
No, but I want one
No, I don't intend to get one
What is you Dreamwidth account name?
Are you crossposting
Yes, all fandom stuff
Yes, only fic
Yes, other (please enlighten me in comments)
No, I don't have an account
No, I post different things on each
Which is your primary account?
neither, I use both the same