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Genestealers versus Daemonettes, whats a better core choice. Myself I think daemonettes have the edge. They are able to handle rending attacks, Albeit a 5++ but the genestealers have just an armor save.
If a Million Guardsmen die, that's a statistic. If one marine dies, that's a tragedy.
Well, gameplay-wise Genestealers are better, what with higher Strength and everything, but I'm going to have to say Daemonettes because I love the fluff and the old models (I hate the new ones) and the concept of a seductive female daemon with 'Fun Bags' and everything that tears you apart when you get too close... it's just more awesome than the world can handle
They are very similar units as far as roles go. If your looking for a strait up answer as to which one is better, there is none. It completely depends on what they are fighting against. My personal choice is demonettes though, seeing as I've never actually seen a unit of genestealers make it into CC with me. They just seem to naturally draw more fire. If your looking for specifics though, you can try my assault calculator.