Well I've never seen EV live.... not that I even want to anymore
But I do have seen alot of videos and I must say that I do like the ones from the Fallen tour way better then TOD tour.
For example, the Rock Am Ring from 2004, she sang Farther Away so perfectly.... this has always been my favo live song......... but now, it looks like she can't catch enough breathe to sing the songs (I'm talking about all). I heard that Sweet Sacrifice the high note is great (i've not heard it myself, because I can't find a live video of that one)....... but now I hear even that has gone bad.
All I'm trying to say is, that she seems like a much better singer before then now. Maybe it's now she has to put more energy in her performance, since the songs need a lot to get the crowd actually in the mood.
And yes, she could use some vocal lesson.s Seriously!