Quicksort does not outperform anyall other sorting algorithmalgorithms. BottomFor example, bottom-Upup heap sort (Wegener 2002) outperforms quicksort for reasonable amounts of data and is also an in-place algorithm. It is also easy to implement (at least, not harder than some optimized quicksort variant).
It is just not so well-known and you don't find it in many textbooks, that may explain why it is not as popular as quicksort.