To me it's very important they're the songwriters...my respect for them as writers and musicians has always increased until Crush/Bounce era.
I don't like artists who plays someone else's songs.
I.e., back in 1992, I had this big disappointment when I found out that Meat Loaf didn't write his stuff...I really love "Bat out of Hell II" but I'm not a Meat Loaf fan...or better, no more. He's a great performer but I cant appreciate him as a musician, and this is too important for me.

I can't imagine what I would think about BJ if they didn't write their stuff. I really don't know.
Anyway I'd rather All About Loving You (even to me this one sucks)
than a better ballad by someone else.