Man, I actually really like a good number of openings and endings. Here's a few of them though:
modern strange cowboy by GRANRODEO (NEEDLESS OP1)
Red Fraction by Mell (Black Lagoon OP)
Kakusei Heroism ~THE HERO WITHOUT A NAME~ by An Cafe (Darker than Black OP2)
JAP by abingdon boys school (Sengoku BASARA OP)
SWORD SUMMIT by T.M. Revolution (Sengoku BASARA 2 OP)
Katayoku no Tori by Akiko Shikata (Umineko no Naku Koro ni OP)
la divina tragedia ~Makyoku~ by Jimang (Umineko no Naku Koro ni ED) OH DESIRE
Raison d'etre by Nightmare (Claymore OP)
Danzai no Hana ~Guilty Sky~ by Riyu Kosaka (Claymore ED)
Sorairo Days by Nakagawa Shouko (Tengen Toppa Gurren Lagann OP)
I could go on but this should be plenty.
modern strange cowboy by GRANRODEO (NEEDLESS OP1)
Red Fraction by Mell (Black Lagoon OP)
Kakusei Heroism ~THE HERO WITHOUT A NAME~ by An Cafe (Darker than Black OP2)
JAP by abingdon boys school (Sengoku BASARA OP)
SWORD SUMMIT by T.M. Revolution (Sengoku BASARA 2 OP)
Katayoku no Tori by Akiko Shikata (Umineko no Naku Koro ni OP)
la divina tragedia ~Makyoku~ by Jimang (Umineko no Naku Koro ni ED) OH DESIRE
Raison d'etre by Nightmare (Claymore OP)
Danzai no Hana ~Guilty Sky~ by Riyu Kosaka (Claymore ED)
Sorairo Days by Nakagawa Shouko (Tengen Toppa Gurren Lagann OP)
I could go on but this should be plenty.