I can completely agree if you say "I don't like metal". That's a bit sad - it's really broad - but fine. However, don't say it all sounds the same, because that's very wrong :) All the following are Youtube links.
I'm not going to detail what's what, this isn't the point here. However, even a cursory glance should convince you those don't quite sound alike! And who knows, you might even like some of it. Enjoy!
Edit: My friend Meteotrix wrote the same kind of list. He's got different tastes, so that's another sampling. Soilwork is awesome though, you might have heard me say that before.