Clones Zeta Order?

Preparing for unlocking GAS, starting to get my clones to G11/G12. Already have a leadership zeta’d G12 Shaak Ti and I was curious if there’s a commonly known clone zeta order. Was thinking

5’s Sacrifice
Rex Unique
5’s other Unique
ARC unique

I’ve heard echo’s zeta isn’t that great, not sure if it’s true or not