So I recently started playing SWTOR and its a great game... I just got to the point where I need to pick my advanced class. I was thinking about going sage because I heard it provides good damage along with utility for healing, I was just curious if this is true. I want to be able to quest and get through the game to the high level content without feeling like it drags on.... Also where can I find a good spec for my consular? and what crew skills are good to have? How can I get to late game as a damage / healer without going crazy with slow leveling?!?!?! O.o Sorry about being such a noob and asking all these questions which I am sure have been answered 492830492834928 times in other threads I just couldnt find O.o

Never have played runescape O.o

So I just bought this game 2 days ago but I was really curious what classes and specs do the best late game? and at what? What classes are OP? What classes are weaker and should be avoided for new players?