Anybody can lead praise and worship but it takes a true worship to lead praise and worship and take the congregation to a new realm.
Yes, have seen people worship for hours and still the presence is not felt and have seen people lead worship for minutes and everyone is in a new dimension, speaking in tongues, felling his presence. You can pray amiss but you can never praise amiss.
I do prefer spending more time in praising and worshiping than in prayers. Praise and Worship move God and make him want to do more miracles, open more doors, shower more blessings and more.
It’s quite a pity that the churches of these days spend more time raising offerings and tithes than in worshiping and praising God.