Yes, Mariah is a far better singer and has much better songs, but Jennifer seems pretty intent on establishing herself as a huge touring star like Madonna. I think Jennifer's concerts over the summer did quite well whereas Mariah has a hard time getting a crowd. Jennifer just needs to have tons and tons of better songs quickly so she has good material to tour. Love? was a good album but I had already heard half of the songs when it came out.

That said, having Mariah and JLo both on idol at the same time would be insane. You would HAVE to see that.