As far as I know Liszt's generation saw the peak of the concert pianist's popularity (correct me if I'm wrong).
Liszt and Chopin are about the only two people of the "virtuoso pantheon" that are still widely remembered today but afaik they had many rivals like Thalberg, Herz, Henselt, Dohler, Alkan, Dreyshock, and others.
My question is did those others also have huge groups of female followers or was it more exclusive to Franz? Did Liszt have a unique charm and personality that made him more popular and sexually appealing or was this something that these rivals also possessed to a comparable degree?
Also, do Brahms, Schumann, Mendelssohn, and other famed piano composers also fit into this list? Were they up to par in their performance abilities or were they seen more as composers than virtuoso pianists? Why didn't Liszt ask them to contribute to the Hexameron?