The best Anime Opening theme of all time?

[RinneBlitz]

What in your opinion is the best opening theme of all the animes for all time ? I have a favorite, but I should add 3 more great opening themes, here they are:

1. Ao no Exorcist's second opening theme:
[video=youtube;DIz23tAEZaE]http://www.youtube.com/watch?v=DIz23tAEZaE[/video]

2. Btooom!'s first opening theme:

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3. Yu-Gi-Oh!'s fifth opening theme:

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These are my favorites... There are more that I like, like Naruto's Blue Bird or Naruto's 12th Shippuuden opening, but these are ... just the best! What are your thoughts guys?

 

[-Tremendous-]

1.[video=youtube_share;qlneNU4GHCU]http://youtu.be/qlneNU4GHCU[/video]


2.

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3.

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Im just taking 2013's i have many favs

 

[Curse]

The best I've seen are Shingeki no Kyojins 1 & 2, Ao No Exorcists second opening, and Bleach's First Opening