Sounds like fun! I'll sign up :)
What is there to request?
What do you want? Your main character riding a Harley Davidson Electroglide down the mean streets of Reno handing out christmas presents?
Well, whoever gets to do fanart for me, I will let them decide which character(s) they want to draw and how they want to draw them. The sky's the limit! It doesn't matter to me, and the main thing is that they have fun. That is the whole point of this, after all.
So you're requesting fanart, then? You don't have to request fanart; it's just that a lot of people are. The request is more for what you want them to draw. If, like you said, it doesn't really matter to you, than I can just stick "fanart" or "none requested" as your present.
I thought that was the point of Secret Santa was to draw fanart for a random person? o.O
But yeah, I don't have a preference. I rather give the artist the freedom to draw what they want (relative to the comic, of course) and not tell them what to draw.