Ok after a lot of research and elimination, I'm back with a narrowed focus, also I'm might get two headphones just because I don't think there is a jack of all trades for me because "metal" is a pretty broad genre and I really don't think one can recommend Grados every single time for every type (of metal). When I listen to music it's the guitars that hook me but the drums that keep me. (Typical list of bands I listen to section): Dillinger escape plan, Isis, Arcade Fire, Converge, Deftones, Discordance Axis, Enslaved, Agalloch, Katatonia, God Speed You, Pelican, Rosetta and I'm particularly fond of Phillip Glass. I think you get the idea. Here are the headphones I'm considering I've listened to all of these and like a lot about each of them, I've listen my grievance with each next to them:
Beyer DT-880/250
(Cymbals were in your face but I figure I could just drop the 8k Hz down in the equalizer and solve the problem.)
Senn HD 600
(They're not really good with faster music and don't have the aggression for converge)
Grado SR 225i
(I heard these straight out of the box and didn't think they sound that much different than the SR 60s, but then again they were right out of the box)
Hifiman HE-4
(Haven't had a chance to listen to these but I read they were a lot like an upgrade to the 880s. Amping is also an issue but it is garage sale season)
These are really pushing the budget and I have not had the chance to listen to:
RS1i
ATH-AD2000
Headphones I've listened to but did not like:
B&W P5
(If I'm going to spend 300 I'd rather go with the HD600, this just covered up too much of the music for me)
HD 650
(The veil was too much on this set, and the instrument didn't have the separation I was looking for. It was possible it was underpowered, but
Beyer DT-990/250
(while most people complain about the highs, there was too much bass for me to the point where it ruined the atmosphere of any song)
Denon D2000
(Guitars did not sound right on these, I'm not sure what was going on with them, but they just sounded wrong and not fun)
AKG 702
(Made everything seem very far away from itself. The music did not come together for me. Also, I did not like the bass.)
Again, I'm looking for solid metal/rock/classical headphone(s) with good details and a full bodied sound, which means well defined, impactful bass, which does not overwhelm, mids that glorify the growls/screeches, gives really nice definition and body to the guitars, and makes it sounds like the cymbals aren't in my face. I want everything it's right place. I do not want to move into balanced gear, I don't have that kind of money/skill. I'd prefer the phones to be open as well, this is for home use so I do need to hear when I'm being addressed. Price range is less than 600. I still need to buy/built an amp and dac.