Hmmm, I am not sure if these were already suggested and I admit that I didn't read through the whole thread, but at least I didn't find them on one of your lists which I DID check. So I'll just go ahead with suggesting some OPs and EDs that imho deserve to be on an "awesome" list. The only criteria applied though is my own taste I am afraid.
Great project you have begun there. Keep up the good work, cheers!
"Saa" by SURFACE
Mamotte Shugogetten (TV/Opening Theme/1998)
"Loosey" by THE STRiPES
Bakuretsu Tenshi (Burst Angel) (TV/Opening Theme/ 2004)
"Face" by Try Force
Heat Guy J (TV/Opening Theme/ 2002)
"Tsuki no Uta" by Gackt
Texhnolyze (TV/Ending Theme/ 2003)
"Ragtime" by Katteni Shiyagare
Gallery Fake (TV/Opening Theme #1/ 2005)
"Aoi Hana" by Color Bottle
Casshern Sins (TV/Opening Theme/ 2008)
"Akai Usagi" by Makura no Soushi
Mugen no Juunin (Blade of the Immortal) (TV/Opening Theme/ 2008)
"Underground" by High Voltage
Tengen Toppa Gurren Lagann (TV/Ending Theme #1/ 2007)
"Modern Size" by Eiichiro Taruki
Yugo the Negotiator (TV/Opening Theme/ 2004)
"Fantasy" by LAMA
UN-GO (TV/Ending Theme/ 2011)