I don't usually listen to "Christian Rock/Pop" for its own sake, but I do wish Kendall Payne amd Tara MacLean would put out some new music.
Favorite singer? Hard to say, I listen to songs as a package of lyrics + music + singing, so I can enjoy some technically weak singers like Elvis Costello or Aimee Mann a lot more than a Celine Dion or pitch-perfect opera singer. If pressed I might pick Tori Amos, Heather Nova, or Maire Brennan of Clannad.