-
Full DL + relic is recommended but you really don't even need that if you're good and know the fight. The FC I'm in now had a WHM heal up to turn 4 with 3 pieces of AF1 (yes the lvl 45/50 stuff) and a regular relic. I don't think any of them were overgeared at the time either.
-
Darklight or Vanya(crafted) gear is fine for BCB all the way to twintania as a healer or a tank. As DPS you should have relic +1 unless your a brd.
I tank on pld or warrior. My warrior is a lot of il90, but I usually tank on my pld for the silence utility and cooldowns. My pld made it through turn 4 with full Darklight and nothing but. I have crafted earring's and 1 crafted NQ rosegold ring.