I've got 57 coins and decided to roll a hunter. Should I be getting Fal'inrush HC with Oathbinder HC, or the Sharpened Twilight Scale HC? Would the trinket or the polearm be easier to get from raiding? Would it be difficult to get the normal version of the trinket?
if you join an OK raiding guild the trinket in normal version is cake. Crossbow always comes first because it gives the highest weapon damage which affects all your shots. With naked gear, Oathbinder will come out on top of STS HC because you will be lacking a lot of crit and passive attack power if you just go with STS. Get good base stats first before you worry about trinket procs. Make another 12 coins and you can get all 3.
Crossbow>Polearm>Trinkets are all pretty hardest to get so definitely try pick up all 3 if possible but if you can only get two then it should be crossbow and polearm to maximise base stats.