Your Favorite Anime Opening Song?

Right now I'm in love with Natsume's opening https://www.youtube.com/watch?v=h8F7Jg8aPPI My all time favourite is probably Your lie in April Opening 1 though.

Rhythm Emotion Two-Mix Gundam Wing Opening 2 http://youtu.be/IHWRslSVpek

My favorite anime opening will always be the opening for the 2011 version of Hunter x Hunter, "Departure"! https://www.youtube.com/watch?v=kUdfQJZWKN8 The first Fullmetal Alchemist: Brotherhood opening was also really good, along with the second Rosario+Vampire opening "Discotheque" (I hate the anime but that opening is GREAT)! Also, the second Akatsuki no Yona OP!

The opening to Orange is pretty great! https://www.youtube.com/watch?v=Qml0mNDJvKs However it's tied with the Shigatsu Wa Kimi No Uso opening since not only is the song catchy, but it also projects what the show is about and foreshadows the events of it very well! https://www.youtube.com/watch?v=jga0ACTdBG4 ALSO the 2nd opening to Psycho Pass was really well done and the song is good: https://www.youtube.com/watch?v=irqFRZqptWg

This is pretty tough, there are a lot of openings I liked but for me I'd say my favorite would have to be the first opening of Darker than Black. https://youtu.be/379VTZNVbKg

I really like the upbeat ones. OniAi Kobayashi san chi no maid dragon Show by Rock Lucky Star

Jojo - Chase https://www.youtube.com/watch?v=qr73XbBFDA8