If you don't listen to or like a lot of metal then I guess we won't speak the same language as I love Heavy Metal above almost all. It's certainly up there with cute kittens, barbarians and robots for me. It's understandable that you don't get Voivod, though, they're not an easy band to get. And Negativa, as well as Gorguts are not meant to be initially catchy so I don't know what you were searching for there. These things reward deeper listens.