I did tell Jonathan Cain from Journey, that they were much better with Steve Perry, the kid they replaced him with was a decent replica, but still just a replica. He explained that they wanted to stay true to the sound for the fans...we agreed to disagree.
I would tell some of the bands that have become big over the last few years, grow some balls, and play to their potential. Some of them are very talented, but they limit themselves with a lot of the drivel they release to pander to the record execs.