Horror or horror/comedy?

We have to choose between the genres horror or horror/comedy and to help our decision on what genre to use for the film we used all the trailers we watched and incorporated them with some of our film ideas to try and make the decision. By watching various horror/comedy's such as Shaun of the dead and zombieland, these trailers allowed us to see how other filmmakers have got their ideas for horror/comedy's across in the trailer which  is quite a hard technique it seems as a horror film is unusually made funny so it can be a failure if the comedy isn't made to seem orginal. We also watched horror trailerssuch as Dawn of the dead, the crazies, land of the dead, 28 weeks later and others which allowed us to see different techniques in making horror trailers. By watching both lots of trailers it allowed us to see that by making a horror/comedy we are taking a big risk with the film because if the comedy and the horror in the film dont have the right mixture then the film wont work so it will be hard to find the perfect mixture so we decided to go with the horror genre because it is a much less rick project and we could also concentrate more on the way we show the horror aspects of the film e.g camera angles etc and the storyline instead of concentrating on the mixture between horror and comedy.