So, what I've decided to do is make a list of the award sites that I'm aware of. I don't know a lot about some of the sites, but I've nominated at most of them. The vast majority of these are Spuffy, mainly because that's what I primarily read.
SPUFFY
1. Vampire Kisses Awards: Run by
2. Lovebite Awards: Run by
3. Lost in Spike Awards: Run by
4. Spuffy Awards: Run by
5. The Wicked Muse Awards: Judge-voted with a single category as reader's pick every round. Currently judging for Round 6.
6. Love's Last Glimpse Awards: My Spuffy awards site, added per the request of a couple people. Judge-voted. Currently judging for Round 6.
MULTI-SHIP/GENFIC
1. Shadows & Dust Awards: Huge, very reliable site with categories for just about everything and promises of more in January. Currently judging for a best of the best round.
2. Shades of Grey: Categories for just about everything, so all kinds of writers can be recognized here. Currently judging Round 13.
3. The Potential Awards: A variety of categories. Authors have to nominate themselves.
4. Spike Threw the Heart Awards: A variety of categories, including ones for sites. Authors/site owners must nominate themselves.
NON-SHIPPY FIC
1. Walk With Heroes: Started by
OTHER
1. Bedtime Stories Awards: Specifically for short stories under 2500 words. A variety of categories. Currently judging. Reader's Choice round starts December 1.
2. The Dark Awards: For dark fic, though NC17 and slash aren't allowed.
3. The Fade to Black Awards: For very dark fic. All pairings accepted.
If anyone knows of other BtVS/AtS awards sites---other ships, genfic, whatever---let me know and I'll update this post with them. I'm going to keep this in my memories as a reference for anyone who might be interested.