Hi Knotical, long time no see! Good to see you again, and I hope you have been doing well.
My wife now leads worship and she pulls heavily from Pentecostal bands, including Hillsong, Elevation Worship, etc. We use tracks from Multitracks.com and the thing about todays Worshio music is it’s very simple to play, and they keep it that way I think because most musicians can’t learn 3 news songs every week and then come together for a single practice and expect to worship because they are too focused on their notes. Trust me, I personally know this. As a result, these bands keep it simple, and easy to learn. That way the musicians can pick it up quickly and focus on worshipping God during service, and not their notes or chords.
Personally, one of my favorite artists is Kari Jobi, then maybe Elevation.
I like Mercy Me and saw him in concert. They were fantastic. However, his message is a bit Calvinistic for me, but I do appreciate his talent, and his heart.
As far as worship music, I can’t see any song of his being used. Well, maybe one or two, but you’ve got to have talented musicians to pull it off.