Assuming it IS accurate, I'm fairly sure this set is what we should be looking at for bis:
http://ffxiv.ariyala.com/RL2T

Though my friend thinks 650 ss is too much and prefers this:
http://ffxiv.ariyala.com/RL2V

Either way, looks like the Brionac is taking the crown for BiS spear. \o/
That was with me messing around a bit in my spreadsheet and being wholly unable to find any way to boost the stat weights while maintaining minimum 590 ss and 647 acc. Ariyala also spits that out if you set your minimum accuracy to 629 and adjust the stat weights (and then don't include food buffs). It doesn't calculate stats post-food for BiS calculations.