Anime theme song?

i dont know if this question was asked before, but ill just ask it anyway. Which Anime has or had the best theme song? the song you could listen to over and over without getting tired of it. Maybe one that could bring back memories.
It could be an opening theme, during the episode or ending theme, whatever.

I'd suggest posting your top 5 ... Along with artist (if aplicable) and a link to the opening to watch it
... and possibly a comment to go alongside it (ya know, why you like it, your fav. etc.)

e.g.
IMHO I would say the top 5 Openings/Ending from an anime are probably:

XTC by Psychic Lover (Witchblade)
Indelible Sin by Nana Kitade (FMA 1st ED)
Namida no Hurricaan by Bon Bon Blanco (Getbackers 2nd ED)
Cutie Honey By Various Artists over its run (Cutey Honey)
Fire Wars by Tornado (Mazinkaiser)

Just so catchy, I can and, have listened to them for hours on end. I only listed all of them because Its difficult to choose between them.
But if I was forced to choose by gunpoint, (which in todays world I don't think it couldn't happen) then I would probably choose XTC ...

Oh god, not another one of these... lol.

I can never really do these types of things because there are so many. One song that I've been listening to a lot is Over the Sky, the ED for Last Exile. I never have a top list, at any point in time, because like I said there are so many and they're all so great.

I think Tsujoi already listed all them. Mine would have to be the Evangelion Opening.

Top Anime Songs

I'll list my top random five.

Taiyou no Mannaka he by Bivattchee (Eureka seveN)
Shissou by Last Alliance (Ouran High School Host Club)
Sorairo Days by Shoko Nakagawa (Tengen Toppa Gurren Lagann)
Puzzle by Round Table ft. Nino (Welcome to the N.H.K.)
Groovin' Magic by Round Table ft. Nino (Gunbuster 2/ Diebuster/ Aim for the Top 2)

Hell yes. Not gonna link the Gunbuster 2 one though cause it shows too many scenes from the actual series lol.

Two of my old school favs

Cruel Angel's Thesis from Evangelion
Konya wa Hurricane from Bubblegum Crisis

My Random Favorite Ones:

Black Lagoon MELL - Red fraction
http://de.youtube.com/watch?v=s5LDcyP7Ecg

Darker than Black Abingdon boys school - Howling
http://de.youtube.com/watch?v=xLdGNP_2rg4

Code Geass Opening (Still my favorite Geass OP)
http://de.youtube.com/watch?v=5SMtBkctyXc

Ghost in the Shell Stand Alone Complex - Inner Universe
http://de.youtube.com/watch?v=f9uX6nt4g78

Ghost in the Shell Stand Alone Complex - Living inside the Shell
http://de.youtube.com/watch?v=dp9X7bChcPs

well mine would be

Virgin's high - Sky girls OP

Heart and soul -Ikkitousen Dragon Destiny op

Antheme the tower - Air Gear OST

Hmmmmmmmm.......

A VERY hard question.....

The one's I like most, at the moment are these here (this is subject to change in about a week.):

"We Are!" by Hiroshi Kitadani, "Believe" by Folder5, "Hikari E" by The Babystars, "Bon Voyage!" by Bon-Bon Blanco, "Kokoro no Chizu" by BOYSTYLE, and "Brand New World" by D-51 - all from One Piece
http://www.youtube.com/watch?v=YcpQMgNXfJ0

"Jungle P by 5050 - also from One Piece
http://www.youtube.com/watch?v=xFsrsXAecqQ

"Distance" by Long Shot Party - from Naruto (Part 2)
http://www.youtube.com/watch?v=E5IdN-E6pNE

"theWORLD" by Nightmare - from Death Note (I miss L :cry:)
http://www.youtube.com/watch?v=h5oXfs1wN6M

"READY STEADY GO" by L'Arc~en~Ciel - from Full Metal Alchemist
http://www.youtube.com/watch?v=T_T7h6xSscU

Dammit, now I can't stop listening to it either!