Originally Posted by
Trakhak
They all feel the same to me.
That's been my experience too. I've had aluminum, steel and carbon forks on similar road bikes and they are pretty much interchangable to me. You want a better ride, fit bigger, lower pressure tires.
As to Trek's and Tour's fatigue rating, I presume the aluminum frames they tested are quite "overbuilt" if they outlasted a steel frame.