Let's meet the combatants:
REMUS J. LUPIN
One-time Defense Against the Dark Arts teacher at Hogwarts and proud member of both incarnations of the Order of the Phoenix, Professor Lupin contracted lycanthropy at a young age and has had to deal with the social stigma of it ever since. Co-created the Marauder's Map.
*Arguably the best Defense Against the Dark Arts teacher Hogwarts has had since the position became cursed.
*Kindhearted and accepting of others
*A skilled wizard in his own right.
*Unable to control himself when transformed unless diligent with Wolfsbane Potion
*As a child, looked the other way when his friends became bullies
*Fear of his affliction hurting those he loves either directly or indirectly has lead him to stupidly push people away at times.
Hogwarts Potions-Master and head of Slytherin House, Professor Snape twice played double-agent between the Death-Eaters and the Order of the Phoenix. While his icy demeanor long-hid where his true allegiance lied, Snape showed his colors when it was most important. Applied for the Defense Against the Dark Arts post every year since becoming a Hogwarts Professor.
*One of the most skilled Potioners of the 20th century, if not THE
*Accomplished in several insanely difficult magical techniques, not the least of which being Occlumency
*Unrequited love allowed him to risk life and limb for the forces of good
*Decades of systematic abuse has turned him into an oppressive bully to most students.
*Committed some terrible acts before turning double-agent, and was required to be party to more afterward
*Is a generally sour and off-putting individual
Wow, this was difficult to write without specifying major spoilers, and even then I don't think I was vague enough. Seriously, read the Harry Potter books if you haven't already (and if you have, read them again). I'm sure Gryffindor and Slytherin will support their houses, but Hufflepuff and Ravenclaw will be the deciders here as both combatants have sizable fanbases.
As always, make sure you're viewing the WEB version of the site and vote in the poll on the right-hand side of the screen. Poll closes Friday, and results posted on Saturday. Feel free to discuss your pick in the comments below.