Head tube cracked on my Specialized Allez Elite. I was second owner so no frame warranty. :-(
In fairness to AL, I cracked the bottom bracket shell on a Italian steel racing bike but that frame was saved by brazing.
I ran my CF bike into a telephone pole at a good clip (about 15 mph) a bit over a week ago and it came through unscathed.
So far, it's CF 1, AL 0, FE 0. :-)