1. ~をおいて
Explanation: Used with a highly valued person or thing. The following clause is always negative (e.g. ほかにいない, ほかには考えられない), emphasizing that the referent is uniquely unmatched.
2. ~ならでは
Explanation: Expresses high praise: only N can produce such an excellent quality, which cannot be found elsewhere. Commonly used as 「~ならではの...だ」 or 「~ならではだ」.
3. ~にとどまらず
Explanation: Used with words indicating a phenomenon or limited scope. The following clause expands to a much broader range that includes the first one, such as nationwide or worldwide. The verb とどまる (止まる) means 'to stop/remain'.
4. ~はおろか
Explanation: Presents N first as something that goes without saying, then adds something more basic, surprising, or noteworthy in the following clause. It corresponds to “let alone / not to mention N, even...”. The latter clause often contains も, さえ, すら, まで. It frequently appears in negative contexts, but the sentence is not inherently required to be negative.
5. ~もさることながら
Explanation: Acknowledges that the first item is indeed good or noteworthy, but the main purpose is to add and place even stronger emphasis on the excellent point in the latter clause.