Thank you for the constructive/valuable/good comment.

Inspiring, insightful...

楼主可以在审稿回复的开始部分表扬一下所有审稿人的意见，比表扬单个审稿人或者单条审稿意见更合适。Those comments are all valuable and very helpful for revising and improving our paper, as well as the important guiding significance to our researches，