Buying Homefront over Darksiders doesn't have anything to do with what good IPs they are or aren't. Homefront 2 was in development for a year already. It's a small investment for Crytek to finish their work. Darksiders 3, on the other hand, was not in development and would be a huge investment money wise for a game that would be several years away, especially since Joe Mads, the creative vision behind the franchise left THQ months ago.