I think making blanket statements either way is the thing to be avoided at all costs. More contemporary music can truly reflect a deep reverence for God, and traditional services can become so stale that the hearts of worshipers are never truly lifted in adoration. But on the other hand, modern services can cross a line into mere entertainment while liturgical ones can open congregates up to truly experiencing the majesty of God. It's not about the style. It's about the focus of those who lead and follow.

"Nothing can be more insulting to God than to presume to examine His Word, professing a desire to learn His mind, when we have already settled to our own satisfaction what it will say."
~A.W. Pink