Mine is

It's mental static! I told you, if you HAVE to think, think in German! -
Asuka, Neon Genesis Evangelion

i'm not sure if this will count:

"Urusai urusai urusai!" - angry or confused Shana (Shakugan No Shana)

"urusai! urusai! urusai!" - shana, shakugan no shana.
"uruchai! uruchai! uruchai! uruchai! uruchai! uruchai!" - shana-tan, shakugan no shana returns.
"omae no kurosu" - heero yuy, gundam wing.
"jarou entatsu no koryuhaaa!" (or something like that)- hiei/vincent, yuyu hakusho.

Not sure if this would be allowed... its from a Toku series.

"dangit!I can't climax!"
- KR Den-0, when he wasn't able to use his Climax Form

"I'm gonna have a really big climax!"
- KR Den-0, later that episode and he was able to access his Climax Form again.

Anime:

"Omae wa mō shindeiru" (You are already dead)
- Kenshiro, Hokuto no Ken

"Aku Soku Zan" (Slay Evil Immediately)
- Hajime Saito, Rurouni Kenshin

"Omaera Bakayaro"
- Chiaki Minami, Minami-ke.

@ V2

"Omae o korosu."

As for me...

"Kore wa keiyaku."
-C.C.

pwede ba to'

"One shall stand, one shall fall" - optimus prime

"USODAAAA"
"Yare yare daze"
"You're already dead!"
"People die when they are killed"

I think it's easy to guess who said those :D

Best quotes for me is

"Ecchi nanoha ikenaitomo imasu"(Porn is bad) - Mahoro, Mahoromatic

Harima - "TENMA-CHHHHHAAAAAAAAAAAANNNN~~~!!!!"

"NANI?!!"


"ATATATATATATATATATATATATA---ATAH!!!!....Omaewamou Shinen dayo" - You're Already Dead - 既に死んでいる - Kenshiro

Son Goku: "Kono ero kappa!" (Horny water demon)
Sha Gojo: "Baka Saru!" (stupendous monkey)
Cho Hakkai: "Iyare-yare-desu ne."
Genjo Sanzo: "URUZAI!" *gunshot*

== Gensoumaden Saiyuki

OH! SWEETO!!! - Master Happosai, Ranma 1/2

IPPEN SHINDE MIRU : Jigoku shoujo

pantsu...pantsu...pantsu.... : Chobits.....HAW HAW HAW

Shinjite - to believe/trust
Kyoka (?) - permission
. . .
- Yuki Nagato (Suzumiya Haruhi no Yuutsu/The Melancholy of Haruhi Suzumiya)
Time waits for no one - Tokikake (Toki wo Kakeru Shoujo/The Girl Who Leapt Through Time)
Nyu - Nyu (Elfen Lied) >= )
Ufufu - Ichigo Morino's sinister laugh (Onegai Twins/Please Twins)
Almost forgot:
(This is a) priority one - Mizuho Kazami/Kazumi (Onegai Teacher/Please Teacher)

Another favorite quote in english...

"Take it all off dont be stubborn"
- SHnY, Haruhi dressing Mikuru.

"You don't only get to remove her panties... You get to screw her also."
Madarame, genshiken.

"The color of her top hair is also the color of her bottom hair"
Sasahara, genshiken

alam ko po screw eh. Can anyone confirm? ^^

ito pa. courtesy of Zer0

"Oh Captain! You should know! If I try to sleep face down it hurts very badly!"
Rangiku, bleach

"If I try to sleep face up, one will try to go to the right and one will try to go to the left!"
Rangiku, bleach

makes me wonder if Susie and Geno ang tawag niya sa twins. lols.

Misato Katsuragi [Evangelion]
-Miracles don't happen, they are made.
-That was an adult kiss. We'll do the rest when you get back...

Himura Kenshin [Rurouni Kenshin]
-You can do anything you like but now that i said i'll kill you, you're death is assured... (can't find the exact line)

Mu La Flaga [Gundam Seed]
-Mu La Flaga, taking off! Don't let them sink you before I return!
-Did you forget? I am a man who can make the impossible possible!

I'm Haruhi Suzumiya, from East Junior High. First off, I'm not interested in ordinary people. But, if any of you are aliens, time-travelers, or espers, please come see me. That is all!

The bluest sky is infinitely high and crystal clear...
~Gentatsu, Rurouni Kenshin