といい～といいBoth A and B as grounds for evaluation
といい～といい selects two notable features of one person, object, work, or situation and uses both as evidence for an overall judgment. The judgment may be positive or negative.
How the pattern works
The speaker chooses two especially telling features, then gives a judgment that both features support. The two items are representative evidence rather than an exhaustive list: mentioning them invites the listener to evaluate the larger whole.
Positive and negative judgments
The construction itself is neither praise nor criticism. The ending determines the judgment.
Evaluating a person
彼は発想力といい実行力といい、チームに欠かせない存在だ。
With both his creativity and his ability to execute, he is indispensable to the team.
AnalyzeDo not confuse it with a wish
In the target pattern, といい is repeated after two nouns and leads to an evaluation. A single といい after a clause can instead express a hope.
明日は晴れるといい。
I hope it is sunny tomorrow.
AnalyzeThis is the wish pattern, not the paired evaluative construction.
More examples
彼女は専門知識といい交渉力といい、プロジェクト責任者にふさわしい。
Her specialist knowledge and negotiating skills alike make her well suited to lead the project.
Analyze景色といい郷土料理といい、今回の旅は期待以上だった。
Between the scenery and the local cuisine, this trip exceeded my expectations.
Analyzeこの椅子は座り心地といい耐久性といい、長く使う価値がある。
With both its comfort and its durability, this chair is worth keeping for years.
Analyze料理の味といい店員の態度といい、もう一度来たいとは思えなかった。
Given both the food and the staff's attitude, I could not say I wanted to come again.
Analyze照明といい音響といい、会場の設備は一流だった。
The venue's facilities were first-rate, from the lighting to the sound system.
Analyze構成といい人物描写といい、この小説には粗さが目立つ。
Both in its structure and its characterization, this novel feels noticeably unpolished.
Analyze