a lv ~50 GR Eddie gives you about 9800 Points. (I think, it's his rarity). I will definitifely level him to 100 and together with some dupe 4* 80ies (SSD, Pyro Soldier, Gunnter COTD) to get the vortex meter full.
I will post again, when he is maxxed.

Yesterday, my friend hit his vortex meter and got ~20 G/A Souls and lot's of skill shards. (and got 3 eddies: Tailgunner, Navigator and Cyborg), so unlike my last to vortex rounds (on both tabs once) which gave me shards and legendary souls, a good amount of G/A Souls can also be the reward.