There are two bis set for the current raid tier.

2.44 GCD
http://ffxiv.ariyala.com/14T6Q
2.46 GCD
http://ffxiv.ariyala.com/154TM

Just wear and meld the pieces present in these two sets as you get them. Also wear the highest ilvl piece if you get them even if they might not be in these two sets. Stat min maxing before you get bis and i370 pieces is pretty meaningless