For me individual differences influence relationships a lot. I can have heaps of fun with an IEE and hate being around an EIE. And I can't put a strict order on it, I love my activators and identicals around equally but for radically different reasons. But my preferences are loosely:
Dual
Activator = Identical
Mirror = Semi-dual = Illusionary
Kindred = Business = Benefactor = Beneficiary
Contrary = Supervisee = Superego
Supervisor = Quasidentical
Conflictor
Yeah, ok, I admit I could've been ore stringent but this is pretty accurate and lets me have a 1-2-3-4-3-2-1 diamond pattern.