Do some types have worse duals? Better conflictors? Nicer supervisors?
Let's compare...

Very Good
ESTp, INFp, ESFp, INTp

Good
ISTj, ISFj, ENTj, ENFp, ISTp

Neutral
INTj, ENTp, INFj

Turbulent
ISFp, ESFj, ENFj, ESTj