I put so much effort into get my guy to 85 on the catch-up server, and now I want to be sure I get to 100 as well prepared as possible. I hear in global chat about statting/tiers, naga runs, pets. I've watched videos on all of them. But I want to be sure of the priority and what I should be doing now and what I should wait for lvl100 to do. If left to my own devices, I would simply continue the quest series and move to more and more difficult zones. I'm in a guild but don't want to monopolize anyone's time and can't be sure that one person's opinions are correct.
If you can get to lvl 100 without statting and tiering etc., wait with that till you are lvl 100.
Just continue the quest series yes.
Find lvl 100 Craft ghear and put Bag stats one it and +12 when you reach lvl 100 you have ghear to some runs
Rest are quest from quest line to lvl up all 3 clases to lvl 100
Yes, pretty much, you will level so fast it makes little sense to waste efforts on lower level gear.