I guess it is due to growing-up in the late 70s and 80s and coming-up with and seeing such great bands (to me) like Iron Maiden, Motorhead, and Metallica, but I have the hardest time finding anything that really blows me away these days. Two of the few tracks that have recently:
Dead Congregation - Teeth Into Red
https://www.youtube.com/watch?v=GiiGbhaEhHMThis track here is amazing, really great composition by Nokturnal Mortum - Valkyrie
https://www.youtube.com/watch?v=BtQ0i3oOYdcThose are cool, I like a bit of black/death metal, it's a shame that the first video you posted has such poor sound quality, would be nice if it was recorded directly from the mixing desk.
I always liked Brutal Truth, it's grindcore more than death metal but very good, one of my favourite tracks:
Denial of ExistanceAlso Emperor, Mayhem, Dissection, Napalm Death, Cannibal Corpse and of course Cradle of Filth! But CoF went a bit shit after their first 3-4 albums. I love the album "Dusk and her Embrace", my favourite track is probably
Funeral in Carpathia.
There doesn't seem to be a lot of new bands that are as good as the older ones, it's a shame but it makes me appreciate the classic stuff more I guess...
And after all this gnarly metal shit, I think I should post some more chilling music, this one is haunting...
Portishead - Only You