I don’t really know much about Festivus, but in honor of it, for less than 24 hours, Nisus Writer Pro is on sale. I was pleasantly surprised by this really versatile and smooth (and high-powered) word processor when I started using it a few months ago.
Find Nisus Writer Pro here. You can also get Nisus Writer Express and a sweet Mac Mail searching program (InfoClick) on sale. I don’t think it gets priced this low, usually.
Here’s the pricing info, from the Nisus newsletter:
Nisus Writer Pro is $55 for the full version (regular price $79) and $35 for the upgrade (regular price $49). Nisus Writer Express is priced at $20, the upgrade price is just $15. InfoClick is only $10! Family Packs for both Express and Pro are also discounted. You can purchase from our store and from the Mac App Store (full versions only).
All you need to do is go to our store and buy, no coupons required. You will be happy you did as you will receive a fantastic deal on great Nisus products.
I have switched almost all of my work away from Word and Pages to Nisus Writer Pro. I highly recommend it. There are also demo/trial versions at the links above.
Words on the Word 
Abram, what are the differences between Nisus and Scrivener?
Nisus is more of an actual word processor. You could use it for your Scrivener compiles.