I only ever cry when listening to music, if I'm honest. I do tend to cry to really heavy albums like sludge or heavy post-metal...nothing unmanly about crying to At The Gates...SOTS will forever be in my top ten favorite albums!! How is it so beautiful, so well-constructed, and also filled with rage. Really, to me, there's nothing else like it. I do like In Flames but I'm not as familiar with them. Speaking of the Swedes, did you ever listen to Dark Tranquility? What about Carnage?
Metal isn't for most people. Most people hear Death Metal and other "extreme" as "noise" or "garbage" or "that's-not-music". I think it's that, harsh vocals turn a lot of people off. A lot of people prefer happy music, maybe a sad song sometimes. But angry, aggressive, heavy music is a cult thing. I think it always will be. And metal musicians are the most underappreciated musicians in the world. They have the most technical proficiency, complex song structures, etc. and they are seen as second-class citizens to classical musicians. But I get the feeling most metal musicians don't give a fuck about mainstream recognition. They have their die-hard fans and that's enough.
Speaking of melodic death metal...ever heard a band called Fleshgod Apocalypse? They're an Italian band that combines opera with like symphonic death metal, and their songs are all about organized crime. They're definitely weird. They're also incredibly talented. When it comes to death metal I must admit my obsession with Nile drummer George Kollias. I find some death metal drummers to be pretty boring/all about speed/big flashy set ups/etc. but George Kollias really makes use of all his equipment and I think he's really creative and also seems like a genuinely nice dude. I'm also obsessed with Deicide, seen them 4 times. I'm mostly just amused by Glen Benton. They're talented musicians but most of their shit sounds the same. Don't really listen to them anymore but they'll always have a special place in my heart.
I'm gonna get out of here before I write a goddamn novel...(tl;dr)