Cowboys, Spaceships, or Cthulhu?

The Age of Worms campaign has but one session left and then it will be wrapped up. With it we will be wrapping up the general D&D campaign that has been going for almost 15 years. Quite an achievement, and certainly one worthy of praise.

But looking to the future I don't want to stop gaming on Sundays. It seems to be a pretty reliable day where nothing else goes on, so why not keep going with something? I can find no reason to not. That does leave us with the question of what to do now, however.

In answer to that question I have three possibilities. I'll outline each in brief:

1. Deadlands: I've got a couple of Deadlands scenarios I'd like to do to wrap up that campaign completely. Probably four or five sessions at most, so not terribly long. New characters welcome, as well as the existing posse.

2. Traveler GURPS: I have been itching to play a space game for quite a long time. This would be a GURPS campaign set in the Traveler: Interstellar War setting. It would have a very Firefly-esque feel to it, but would probably take the route of freelancer traders/smugglers in a wide galaxy dominated by an imperialistic regime at odds with the Terran Federation. Unknown campaign length as of now, but I envision it being more open and freestyle than others.

3. Day of the Beast: We started my Call of Cthulhu campaign a few weeks ago on a Friday, and the original idea was to play it on Fridays when we weren't playing Star Wars. Well, we seem to be playing Star Wars most weeks and the weeks we're not there's something going on occupying most of the people's time. So we could move it to Sundays as a regular game. About twelve sessions in total is what I anticipate.

So - cowboys, spaceships, or Cthulhu? What's the vote?