My signature - rigid forks (usually RC30s), cantis (if there is a rear canti stop), Syncros post and stem, Flite, flat bars, barends, thumbies, SPDs, Middleburns. I consider my imaginative and varied builds a key strength.
Ok, so being a bit mischievous, does the signature build indicate that we have 'dialled' in our preferences by experimentation over a period of years and know what works for us? Or does it signal up a "know what I like and like what I know" approach that shies away from trying something new?