Ok, so I'm a Zelgadis groupie, what can I say.

I'd maim myself or anyone else for:

   Zel from the opening of the 1st season 
Slayers...that moment where he turns around with 
that little Mona Lisa smile on his face (*melt*)

   Zel from the bath scene in Slayers Next.  "I 
have split ends?"  (wanna crawl right in the tub 
with him :) )

   Any decent shot from the Zel vs. Gourry dual 
in the episode where Gourry is still under 
Phibrizzo's control.  That has to be one of the 
best action scenes I've ever seen.

Certifiably insane here.