The Messenger of Allah ﷺ was asked about the prayer which was most excellent. He said: That in which the standing is longer. (This hadith is narrated by another chain of transmitters too.) (Using translation from Muslim 756b)
سُئِلَ رَسُولُ اللهِ ﷺ أَيُّ الصَّلَاةِ أَفْضَلُ؟ قَالَ طُولُ الْقُنُوتِ