BEST anime sword attacks / techniques!

Hello everyone

I'm working on a new anime project. If possible i would like to hear your opinion about anime sword techniques.
Im trying to make a "top 10 anime sword attacks/techniques" list. I have a few nominees already but not enough to complete the list.
So here is my question: What do you think is the BEST anime sword technique out there. If you can give me your favorite, or your top 3 that would be awesome.

As a side not: Anime word techiniques do not include attacks like "getsuga tensho" or similar attacks. Those are more projectiles or blasts rather then sword techinques.

So to start it off i'll give you a few that i think would be fitting for a list like this:

- Kenshin's Amakakeru Ryu no Hirameki: http://www.youtube.com/watch?v=flnirECVH3c , need i say more ...

- Assasins Tsubame Gaeshi (fate stay night): An awesome sword attack used to end a fight instantly leaving almost zero openings and nearly zero chance of failure

These are only two of many choices. Let me know what you think!

Thanks!