Gender -- no. I don't even know how to gend.
Age -- old enough to know better, still young enough to do it anyway.
Type of horror films -- penguin snuff. Kitty cat snuff. Platypus snuff. Anything cute, really, so long as it's snuffed.
How do you watch films? -- with my eyeballs.
In all seriousness -- if you're a horror production company, you're going about it the wrong way. You can't execute a film designed to appease all fans. You get yourself a good script and you make it. If the final film is good, the fans will come. But there's no way you're going to please everyone, regardless of how much research you do.
Source: experience in the biz.