1. Which character of DS9 (no matter if main cast or guest star) would you say is most like yourself (personality wise and/or appearance wise..or two characters, one for personality, one for appearance) and why?
Kira. I relate most easily to her, she's a lot like me - outspoken, passionate, determined, stubborn, opinionated, principled, she has a temper like me, and she's quite caring, tender-hearted and vulnerable deep inside... Which doesn't mean that there aren't big differences and that I am like her, but I can see myself being like her if I had her background. I'd also say that, apart from the hair, she is closer to me in appearance than Ezri or Jadzia or other females on the show.
2. And which character is as opposite from yourself as possible and why?
Rom and Leeta. Also Grand Nagus Zek... Weyoun...
3. Which character would be most likely become a good friend of you, if you would be a character in DS9? Why?
Odo, Jadzia, Kira (again), O'Brien, Sisko, Jake (as an adult, ... he's a writer, we have similar interests), Ziyal, Ezri... Anyone who is frank, honest, loyal and trustworthy; who isn't overbearing and arrogant and who treats you like an equal; who I can have an intelligent conversation with; and who won't continually hit on me in an annoying way. The latter could be a problem with Bashir, at least before he grows up from his clueless manchild stage, as he started to do in the later seasons.
4. Which character would most likely never become a good friend of you, why?
Winn. She reminds me of the kind of people that I really can't stand in real life.
Per the above mentioned requirements, I would probably never be real friends with Worf, since he's not one to have a conversation with; Rom, since you can't have an intelligent conversation with him, unless it's about engineering, which I have no clue about or interest in; Quark, since you can't count on him to stop hitting on you in an annoying way if you're female (Bashir, as noted above, is an open verdict) and he'll always have some scheme going; or Garak - who would be an acquaintance to have a fun conversation with, but who totally fails requirement #1, and I can't be real friends with someone I can't trust. (And Dukat is kinda obvious - he fails everything except the intelligent conversation requirement, and even that only while he's sane)
5. What would be your job on DS9? Why that one?
Hm... I suppose I could be a reporter for a news service, or make holo-documentaries, or something... Maybe I'd be an archeologist researching old Bajor artefacts (and occasionally going to the excavation sites at B'hala. And for a hobby, I'd go and sing at Vic's.
6. If you would not be living on the station, but be in that universe/timeline..well you know...where would you be living instead and what would you be doing there?
Probably something to do with humanistic and social sciences or arts. Maybe I'd be a writer or a holoprogram-maker (are there still filmmakers out there?)... or I'd be researching history, anthropology, sociology of various planets, comparing languages, decrypting ancient languages, stuff like that. Maybe even helping with the continuous re-programming and perfecting of the Universal Translator?