i like the fruits basket opening song. its really sweet and pretty.
then i love the 3rd opening of bleach ichirin no hana.yoruichi's kick ass moves did the trick
then BEST of all, the 6th opening of bleach ALONES. holy cow, wen i first saw it i fell in love cuz i think it was tyte the way kon was singing. usually it takes me awhile to like an ending or opening song but i fell in love wen i first saw and heard alones

my favorites are
detective conan
candy candy
glass mask
shoot

For me, my favorite Op and Ending Songs are:

Jigoku Sensei Nube
Dragon Ball Z
Kamen Rider Black
Transformers Head Masters...

really cool music..

Naruto - Go!!
- Hero's come back

Bleach - Orange range
Alones

I really enjoyed the ones from Bleach and Naruto considering those were the only ones I really watched but now I've stopped so I'm not sure. Though Honey and Clover had really cool openings since it used real life objects and it wasn't all animated

Nana ED4 - Winter Sleep - Olivia Lufkin
Nana OP1 - Rose - Anna Tsuchiya
Beck - ED2 - Moon on water
Death Note Op and Ed
All Blood+ ending and opening - uverworld and others

i love all these songs and more because their all really catchy and i got to find more songs that they've sung that are all just awesome!!

Ouran Host Club Op
D Grayman 2nd Op
Darker then Black Op
GetBackers 4th End

Endings:

Cowboy Bebop: Real folk blues by Mai yamane and the Seatbelts. A hearbreaking, powerful song, great use of the voice. A song that appears once in a thousand years.

Less great but also lovely endings:

Azumanga Daioh: Strawberry Heaven. A song can actually be innocent and clean. Lovely.

Ogre Stabber Orphen: Last Kiss, by Tanpopo. A little bit repetitive, but with a lovely melody.



Openings:

Now that's a difficult one...

Karekano's op: Tenshi no Yubikiri. It's both ambitious and happy. It feels like life is a fight, but a nice one.

Kodomo no Omocha's op: 7' o clock news. Fun rock, great song.

There are more of them, but these are some of my favourites.

I love the Michi - To you all ED for Naruto Shippuuden, cuz its just so old skl!!!

naruto openings
bleach opening theme -techno life