Bankee

Hi,I am somewhat new to the game and am trying to decide on a real good starting group. I have been watching some videos on the subject and am unsure how the builds they show will work with the turn based mode. I don't even know if the turned base mode is worth it or just play normally? I really am not sure if I want to play the tank role or dps. I Am not much into just playing a caster role, but I do not mind having the ability to cast spells. Maybe something like a death knight type of role where I can cast and deal lot's of dmg with weapons? And I do not know what to do as far as companions go or to just build a whole team at the inn? I am guessing it would be best to play the companions first time through? Any help would be fantastic on all of this. Thanks in advance.