Guild Wars 2

Greetings community!

I recently decided i take up on the offer of my ex college and rejoin the game. I think i left the game around when fractals got out…didnt like the pve content…felt way to dull to me…with the whole combat system, but i assume i took it to hardcore. And new mmos are not that hot afterall. So i bought HotT.

Trough i dont like to get influanced by anime and movies to select characters, i still got hyped up by Log Horizon and found out , i am more of a stand back and tactically support and nuke kind of guy, so i decided that i will play that kind of class when i return…trough i wanted to try Revenant to, and i rolled one…but not really feeling that hot …true its only lv 8 and only did a few bg-s…dont really know right now what i do, but still.

I see a lot of new things like the fly bots for engineer and dragon hunter spec for guardian, i am a bit lost with new trait system and all. So can anyone suggest me a good class for :

Decent solo que pvp-Not S rank but atleast a-b (dont like zerging more like 5v5-10v10 style matches).
Viable and wanted class for raids and dungeons (as support or maybe an additional role)

Any suggestions whats good for all this right now?