When Lucas changes the arrangement of popular songs, it is still really good. Others tried it without much success. He still mumbles a bit too much for my taste, but he has given a bunch of killer performances. He seems to give off a Mick Jaggar vibe. He will be a great frontman, but as Clarkey mentioned, he may be a bit more emo than the band would like.
I thought Dilana would be there to the end, but I think just about everyone has now seen her limitations, and she may have burned a few bridges. I wouldn't have been surprised to see her go last night, but she has had anough killer performances that the got by on 'built up cred', as Dave would say. (and I was shocked to find out she is 3 years younger than Storm(34 vs 37))
I think Magni would be the best. I really liked his original. But I really can't see him away from his family for as long as a tour would require. I suppose he would know best.
Toby seems like the biggest 'pop' artist. I'm surprised that the Supernova songs that have been played so far aren't as heavy as I expected, so that seems to bode well for Toby.
For an interesting read, go to
http://www.6767.com/
It is Dave Navarro's personal blog, and you get a bit more idea about what is going on than just on the show.