Ohh nice, I listened to the second In Flames song and I quite like it! I think the vocals fit better in this song than the other one. For some reason in the other one I felt it could have sounded better with "proper" singing in it. The song sounded epic and melodic, not saying it needed high powered power metal inspired vocals, but at least some singing that didn't feel as if they were forced out and belted out, yeah, and aquired taste I guess? =P As for this one (second song) it seemed to fit in pretty well.
Oh yeah, I listened to the Allegaeon one again, and yeah, I did like the bit at 4 min mark. In fact, it reminded me a lot of Quick Man's theme! I thought it was pretty cool.
Ah yes, I didn't mind the previous Shaolin Death Squad song. This one was also quite nice actually. It was something different too, but I guess a nice stray away from the RARARA as Mike calls it, hehe. Then it turned surprisingly heavier, ha ha, I should have seen that coming.
Lol! The long scream in the Graveworm song. That was seriously long, longer than the Grim Reaper one. The song itself is not bad, but I have to get used to the singing style. For me, the singing makes or breaks a song, so I'm very selective with that in mind. Otherwise, not a bad song at all. =)
Ahh, Annihilator was pretty cool! The main riff reminds me of something, oh shit! Yes, it reminds me of Hell March from Red Alert! WIN! lol. I can imagine this song being in Red Alert, or at least the instrumentals. It sounds like a song you could use in a war game. I think this and In Flames are the winners of this round, and the singing in this one wasn't overly grunty or screamy, lol. Nice scream at the end! XD It almost sounds like he accidentally stepped on a rusty nail just as he was about to belt out the last part, ha ha, but it was impressive! =) In case you haven't heard Hell March, here it is:
Ahh yes, good old Priest. I might post some more of my faves later, but yeah, it's good that you haven't heard those songs before. Glad you liked Grim Reaper. That first song was the one that got me into them, and then I listened to more of their songs and found their catchy appeal was sticking to me.
This song follows the similar vein of Wasted Love. Very high powered 80's metal song!
I wanna find these Grim Reaper albums now!

Speaking of songs that went mainstream, here's another Helloween song that was popular on MTV. Being more "pop-like" it was easier to get noticed mainstream (much to the success of their other song I Want Out). The lyrics in this song however are silly, but it's a fun and catchy song.
These guys know how to not take things too seriously, but still remember the music. This song was stuck in my head for weeks, lol.
If you listen to Helloween's new album (7 Sinners) they sound totally different. They are more Nu Metal now, and they have a different singer to before (well, every since 1990 or something, lol). Not bad though!
Going onto Nu Metal though, one of the few "newer" bands I like today is Disturbed (there's heaps more, but they're categorized as other forms of metal). One of the few Nu Metal ones is Disturbed though, and I guess I chose them because they weren't too "crazy" lol, and because I liked the singing style in it (makes or breaks it). This was the song that got me into them (pretty popular song).
Thank you Guitar Hero, you introduced me to something good! lol.
Finally, a band that my friend introduced me to, Nightwish. While I don't know many songs, she showed me their rendition of Phantom of the Opera. After listening to it, I thought Opera + Metal = win! (much like how Stratovarius successfully mixed classical with metal). Enjoy!
Their live videos are worth watching, they know how to draw the crowd!
Well that's all from me for now, I'll keep listening and keep posting.
Also, you know Green metal bro is a pun too, metal as in made of metal, and listening to metal (real obvious I know, lol). That's so metal man... or is it Metal Man? lol.

EDIT: You sneaked in Blind Guardian, lol. Ah yes, this band formed after Helloween (both are German). In fact, I think this band and another one (ahhh, the name will come to me) covered Helloween's "I Want Out." So when I remember the other band, they might be worth checking out.
This song is pretty cool actually, and I have heard a bit of Blind Guardian, but not enough it seems. I got links to them after listening to Helloween. Sonata Arctica I think was the other band that covered them, not sure, worth a look.