Long reply on the way...
Heavy, Death metal. Thrash.... System of a down... Mudvayne, Stone Sour, Three Day's Grace. Lots o' stuff. Oh yeah! AFI. Can't forget them.
Funny that you like "Heavy, Death metal. Thrash... " when none of the bands you named are anywhere near heavy, death, or thrash metal... Don't take this as an attack, I like Stone Sour too, but don't call those bands any of those three genres. SOAD and Mudvayne are metalcore, Stone Sour, AFI and Three Day's Grace are all alt-rock (not too familiar with them, but I've also heard that AFI is punk).
I listen to
-Three Days grace
-System of a down
And Disturbed, I can't believe that no one has mentioned disturbed yet.
This simple explanation might answer your question: Disturbed is not talented. In a later post you stated that you were 'hardcore into metal.' Again, don't take this as an attack, but I find it funny since three bands you've listed are actually metal - Metallica, Megadeth, and Iron Maiden.
What usually turns me off of rap is the lyrics. True, rock lyrics can be equally mysogynistic and violent, but rap instrumentation tends to be a lot more sparse, bringing the lyrics to the forefront. I've found that I usually concentrate on the music in any given song and ignore the actual words, but that's harder to do with rap. I've stumbled across a few rap albums where the lyrics are different from the norm, and I tend to like them more. (like one of my favorites of any genre, Deltron 3030, which is a sci-fi rap Effeminate. That, and Dan the Automator is a great DJ. His presence was missed from later Gorillaz albums.)
Carbon, I enjoy rap/hip-hop purely because of the lyrics. Certain artists like Kanye West, Heiruspecs( know someone else mentioned this group ) are very crafty in their lyrics, and as such, it is fun to listen to them. I appreciate great composition of metal second-to-none, but hip-hop lyrics are the only attraction to the genre for me...
In my mind, rap isn't really music. Now, don't get me wrong: it can definitely be a way to express one's feelings in much the same way that music does. But, I don't know...it's just not the same.
For one thing, there is rapping and then there is singing. Now, some rap "songs" do contain something very close to actual singing (I can't think of any examples...and, heck, maybe they weren't even rap) and I can actually stand to listen to those. The same is true for the "music" component of a rap "song." It isn't really music, just a very repetitive beat. Some rap has something more complex than just a straightforward beat, and, again, I can almost stand those rap "songs."
If anything, I would call rap a kind of poetry (which I'm not a big fan of, either), while other genres of music (all the rocks, country, jazz, swing, techno, etc.) are, well..."music." And I do like at least a few songs from each of those genres.
Yeah, the only "music" in rap / hip-hop is generally a repetitive techno/trance/percussion beat, but groups like Heiruspecs actually have drums, guitar, and bass in all their songs. They also have some piano too. Rap / hip-hop isn't something I can listen to when falling asleep or when working out, I agree with you there, but sitting here, I can listen to it and relax. I can hear the lyrics without concentrating to try to hear them. If you don't get it from it then fine, but I used to be the same way, and now I can appreciate the genre because I've listened to some good artists - Kanye, Heiruspecs, and Sweatshop Union are the three that come to mind.
Anyway - onto my music choices. My current playlist is set to the following metal bands -
The Project Hate MCMXCIX, Mors Principium Est, and Decapitated (R.I.P. Vitek)
These are taken pretty much verbatim from my Facebook, with a few changes(bold = absolute favorite, regular = favorite, but not to the same degree) A Perfect Circle
(Folk Metal), All That Remains
(Metalcore), The Ascent Of Everest
(Ambient/Post-Rock), Aux Raus
(Melodic Death Metal), Daysend
(Melodic Thrash Metal), Decapitated
(Technical Death Metal), Deftones
(Doom Metal), Devin Townsend
(Progressive Metal), Dimmu Borigir
(Melodic Black Metal), El Ten Eleven
(Ambient/Post-Rock), God Is An Astronaut
(Extreme Progressive Metal), Katatonia
(Only early stuff before their Depressive Rock phase)(Doom Metal), Lebanon
(Melodic Death Metal), Meshuggah
(Technical Post-Thrash Metal), Miles Davis
(Ambient/Post-Rock), Mors Principium Est (Melodic Death Metal), My Dad Vs. Yours
(Symphonic Progressive/Death Metal), The Project Hate MCMXCIX
(Industrial Melodic Death Metal), Sopor Aeternus And The Ensemble Of Shadows
(Darkwave), Steve Vai
(Guitar), Still Remains
Amon Amarth, Amorphis, Armor for Sleep, Becoming the Archetype, Between the Buried and Me, Boysetsfire, Bush, thecastingout, Celtic Frost, The Chemical Brothers, The Clan Destined, Coldplay, Darkest Hour, Dead Poetic, Desire, Efterklang, Emperor, Impelliterri, It Dies Today, Meanwhile, Back In Communist Russia, The Number Twelve Looks Like You, Powergod, Project 86, Protest the Hero, Psychotic Waltz, Opeth, Rage, Rage Against the Machine, Remembering Never, Red Hot Chili Peppers, Saturnus, Soilwork, Team Sleep, Thrice, Thundra, Thursday, Underoath(Define the Great Line ONLY), Unearth, Zyklon
None of the hip hop I mentioned earlier made it on there yet.