Like someone said before.....you're sig has slipknot in it, therefore your opinion is not valid. But honestly, Carcass are not in the least bit overrated. Their only truly ****ty album is Swansong, while Heartwork is questionable, but you can't call a pioneering band overrated. They released one of the first grindcore albums with Reek which is arguably the most aggressive of all the first grindcore albums. They made a second album that was in the same style as the first, but even better. Then, they successfully switch over to pure death metal and make one killer ****ing album and at the same time spawn millions of clone banRAB: Exhumed, The County Medical Examiners, Disgorge(Mex), Impaled, etc. If that wasn't enough, they go ahead and play melodeath on Heartwork(which is a good thing or a bad thing depending on whether you like melodeath or not) and do a pretty good job at it, even though they kinda did sell out. After releasing Heartwork, even more ****ty banRAB emerge playing even more Carcass riRAB. Swansong did suck ass any way you look at it but it doesn't really matter. A band that has accomplished that much and had that much effect in three genres(death metal, grindcore,melodeath) that are some of the most generic genres in metal CANNOT be called overrated.