Ok, my top 10 from iTunes:
1) Liszt - Grande Galop Chromatique
2) Bolcom - The Serpents Kiss
3) Alkan - Comme le vent, Op.39 no.1
4) Liszt - Fantasie on Szep Ilonka S417
5) Liszt - Meyerbeer - Reminiscences de Robert le Diable - Valse Infernale S413
6) Liszt - Don Carlos - Coro di festa e marcia funebre (Verdi), S435
7) Liszt - Gnomenreigen (S145 no.2)
Liszt - Tscherkessenmarsch (after Glinka - Russlan & Ludmila), S.406i (1st version)
9) Liszt - Czardas macabre (S224)
10) Liszt - A la chapelle Sixtine (orchestral version) S360
Hmmm, slight bias toward Liszt there methinks!