My "favorite" Christines (as you can see, I'm across the pond from the original poster)are Trista Moldovan; Sierra Boggess, whom I believe grew into the role between the time I saw her in Las Vegas when the show opened and the time she played it in the 25th anniversary video; Samantha Hill, the new Broadway alternate, whom I saw at her third or fourth performance; and, please don't razz me, Emmy Rossum, from the 2004 movie. Based on her "Love Never Dies" performance, I suspect I would also like Anna O'Byrne. The reason I enjoy their performances so much more than the performances of other Christines that I've seen is that they play Christine with spirit, as an intelligent young woman who is trying to do the right thing, instead of as a scared ninny who refuses to take charge of her own life. They also have incredible voices.
I won't post the names of the ones whom I believe play Christine as a scared ninny, but I've seen too many of those!
You alone can make my song take flight.