I can't say too much one way or the other about Campbellites. The only ones who I know are some inlaws. I know that my mother-in-law's Sunday School class actually studied the deuteros a couple of years ago.
It is the Catholics and the Catholic Light that elevate the Gospels above the rest of the Bible.
One thing I particularly enjoy is hearing the final Gospel at the end of every Latin Mass (John 1:14). In the very beginning it says, "In principio erat Verbum, et Verbum erat apud Deum, et Deus erat Verbum."
The point being that hearing the very words of the Word when He became flesh (caro factum est) is a spirtual feeding of that Word to our minds, just as Holy Communion is a spiritual feeding of that Word to our bodies. Both are essential...
Beautiful