I control Greater Good, Rings of Brighthearth, and a 9/9 creature, with two mana in my pool.  If I sacrifice the creature to Greater Good and pay for the Rings' trigger, does the copy of the Greater Good activation copy the power of the creature sacrificed?

I.e., will I discard three, draw nine, then discard three, or will I draw nine, discard three, draw nine, discard three?

You will draw nine, discard three, draw nine, discard three.

Draw 9, discard 3, draw 9 discard 3.

Rings copies the actual ability on the stack, which means it's just copying an ability that essentially reads: Draw 9 cards, then discard 3 cards.

EDIT: Ninja'd