Anime - What is your favourite Anime Theme ?

So, what is/are your favourite Anime Theme(s) ?

Mine are :
Code Geass
Flow - Colors
Flow - World End

Gundam Wing
Just Communication
Endless Waltz
Rythm Emotion

Pokémon opening songs ... I know them all xD

and the Rurouni Kenshin opening song nostalgia xDDD

Trinity Blood

Dress - BUCK-TICK
Requiem Inori - Lisa (an insert song)

Kuroshitsuji

Monochrome no kiss - SID

11eyes

arrival of tears - Ayane

Fate/stay night

Disillusion - Tainaka Sachi

Kemono no Souja Erin

Shizuku - Sukima Switch

To mention a few, its TOO many xD

Heart of Sword ~Yoake Mae~ from Rurouni Kenshin

And all of the songs on Gundam Wing! YAY for Gundam Wing!

Akaiken wrote:Heart of Sword ~Yoake Mae~ from Rurouni Kenshin

And all of the songs on Gundam Wing! YAY for Gundam Wing!

Gundam Wing really has the most epic themes ever

Gensomaden Saiyuki:
Tightrope (Medieval Version)
Open Up Your Mind

Sailormoon first opening theme and it's instrumental version

Rhythm Emotion of Gundam

Magic Knight Rayearth's 1st opening theme

Gravitation:
Ragebeat
Sleepless Beauty
Glaring Dream
Shining Collection

Bleach ending theme

Black Blood Brothers ending theme