My family is actually from Denmark, but that's a whole different thread. lol. Anyways, I have often found the same with Slayer, i just never caught the hype. I respect their place in the history of metal it's just not for me.
I enjoy pre-black album Metallica but my interest dropped pretty quickly after that & i started looking for something heavier.
I don't really listen to much Dansk metal at all to be honest, i do enjoy the Psychobilly bands & a few of the "alternative pop" artists like Tina Dico & Dicte, etc though. I guess on the upside, at least they aren't namedropping Aqua & Mo when they find out you're Danish though.