I'm really enjoying the guitar in the opening from Gekkan Shoujo Nozaki-kun.

 

Ouran High School Host Club - Opening - Sakura Kiss
https://www.youtube.com/watch?v=Tw-jmr-AvN8

 

Fighting Dreamers - Naruto
Gundam Seed Intros, I dont remember the name but they were good

 

Inital D
Dream - Night of Fire
Max Coveri* - Running in the 90's

*Maybe, it sounds like a Japanese cover but I can't find the cover band named. Perhaps it's Dream as well.

Kill la Kill
Cyua - Blumenkranz

Naruto
Nobodyknows - Hero's Come Back

 

I totally forgot...

Mawaru Penguindrum
Triple H - Rock Over Japan {Gloriously cheesy. "Triple H" is actually a band made up of three of the characters, while the song is a cover of the original by ARB.}

 

Edit: Oh fuck me, wrong thread, I think.

 

Gurren Lagann
Tarantula ft. Kasahara Yuri - Libera Me (From Hell)