Shirou fucking EMIYA vs Sayaka might be nice, but I'm waiting on whatever power up Sayaka-chan gets in the final Madoka movie with her body turning all witchy. Also, Sayaka has gotten an infinitely better deal being Madoka's vice angel in Magical Girl Lesbian Heaven than Redman as a Janitor.

Alaya has deemed Death Battle threads a threat to Mankind, and as a Janitor, EMIYA must clean up the threads.