expression
in terms of both ... and ...; whether it be ... or ...
Pattern: AといいBといい. Used to list two aspects, both of which support the speaker's evaluation. Often implies 'not only A but also B' or 'both A and B are ...'.
このホテルは、サービスといい、立地といい、文句のつけようがない。
This hotel, in terms of both service and location, leaves nothing to be desired.
彼は、性格といい、能力といい、理想的なリーダーだ。
He is an ideal leader, whether you consider his personality or his ability.