In no particular order:
#1. Dr. Horrible
If you don't know who he is, watch this RIGHT NOW, followed by this and this.
Why Dr. Horrible? Because no mad scientist holds a freeze ray on this diabolical villain, and nothing is more suitable for Halloween than the Evil League of Evil.
Plus, it's perfect for me. It speaks to both my Halloween and my Joss obsessions. And there may be a tad of a love for all things Neil Patrick Harris (and Nathan Fillion) thrown in there too.
#2 Jareth
You remind me of the babe! 'Nuff said.
Okay, not 'nuff said. I shouldn't say that I wish I would have thought of this earlier because, as many people known, I have long obsessed about dressing up in the matrimonial and child wielding future as Sara with a Jareth husband and Toby child. However, I could very well have pulled of Jareth this year, had I, you know, thought about it.
#3 This lady
I have no idea who/what she is, but I found this picture on the internet, and long desperately to replicate this look.
#4 Buffy the Vampire Slayer
Only #4 on the list because I wanted to avoid all my Jossness being bunched up at the top of the list.
Why not dress up as my favorite TV character who people say I look like anyway? Because I didn't think of it early enough.
And why is Buffy so awesome? Need you even ask? Well here is just one reason:
#5 Sexy Freddy Kruger
Ha ha, I know, I know, putting "sexy" before something does not make it a good costume. In fact, it usually makes it a crappy costume. But opening up the possibility of this character as a Halloween costume to women in a fitted mini dress? Good costume. Though I would, of course, not wear it as depicted in this picture. Paired with a pair of leggings or skinny jeans, and some scary makeup, and this costume is top notch.
And, the idea of Freddy Kruger being made into a sexy lady costume...HILARIOUS!