Ok, not a new player - I dabbled with this in the past, have a level 29 sitting in Coldharbor, but I'm thinking of taking a serious stab here around now. Logging in at the moment, I feel a little lost.
For background: I played Wow for ~ 6 years. And I played SWTOR for the last 5. I've played many other MMOs. But I haven't done much in the gaming world other than play SWTOR since it released. In SWTOR I mostly PVP but "touch" many things, have played all class stories multiple times, some more than others, have tons of achievements, most reputations maxxed, over 40 characters at max level (or did until max level became 70), etc.. I have thousands of hours played. I basically like the game but the management and direction of it just hurts my brain and it seems like development resources are getting nixxed; where I've been riding on hope for awhile that some needed changes would eventually occur, I really don't see a future there now. My history with Wow is similar and I may go back to that instead.
In this game I want to PvP without making newb build mistakes. The impression I get here is that build and selected abilities matter a lot and can easily be wrong. What's the main resource? I like playing non-stealth melee (not interested in FOTM but also not interested in playing the build that is target practice for the FOTM). What would someone like me that's played this game instead of SWTOR say to me? Where do I start?