There are threads like this and it should be in the classic MK discussion section.
Still:
5-Sub and Scorp.
3-Ermac and Reiko
2-Rain
1-Noob Saibot of course.

Lee Chaolan.

Didn't say "who are your favorite MK characters", so it can be whoever you want, MK or not.

Favorirtes:
Nitara! ! !
Ermac
Tanya
Kitana
Hotaru
Frost
Mileena
Mavado
Sektor
Sonya
Ashrah

1-Sub-Zero (Ninja Outfit)
2-Reptile (Ninja Outfit)
3-Scorpion (Ninja Outfit)
4-Smoke (Ninja Outfit)
5-Ermac (Ninja Outfit)
6- Rain (Ninja Outfit)

And No NooB SaiboT SucK's So MucH AsS

Him. Also Bryan Fury.

Blasphemy!!! He has now a great story since MK4 and MKD, plus his MKTE ending in GBA was great too!!!Plus, he is a ninja and the only one that really looks like one now and that uses stealth powers and he is all in black. Noob rules!!

1~kitana mk
2~sabrewulf ki
3~taki soul cal/edge/blade
4~sindel mk
5~orchid ki
6~chun li sf
7~kung lao mk
8~raiden mk
9~cheif thunder ki
10~celes from final fantasy 3/6

1) Scorpion
2) Kitana
3) Noob Saibot
4) Quan Chi
5) Reiko
6) Sareena
7) Sub-Zero
8) Sektor
9) Kabal

Honorable Mentions:
Mileena, Raiden, Jade, Kung Lao, Sindel, and Reptile

Sonya
Kitana
Mileena
Jade
Baraka
Ermac(UMK3)
Human Smoke
Scorpion
Sub-Zero(Classic/Noob Saibot)

Grandmaster Sub-Zero
Sub-Zero / Noob Saibot
Scorpion
Reptile
Kira
Li Mei

Shujinko (yeah), Shang Tsung (hell yeah), Hotaru (oh, yeah) Sub-Zero, Scorpion, Dairou, Frost, Nitara, Mavado, Kano, Cyrax, Jax, Sonya, Kitana
and of course Bo' Rai Cho!

also Duke Nukem, Heihachi Mishima, Siegfried, your character in Baldurs gate I-II plus expansions. Nameless One, Morte, and Cataphract

Scorpion is it i can really relate to him coz his style is hapkido in deadly aliance and deception

Reptile
Noob-Siabot
Kabal
Rain

1.Frost
2.Jade
3.Kitana
4.Sub-Zero
5.Scorpion-spelled wrong i think

My favourite MK characters.

1. Johnny Cage
2. Mavado
3. Kung Lao
4. Kitana
5. Nitara
6. Kano
7. Kabal
8. Stryker
9. Kira
10. Shao Kahn

jax
sonya
kitana
onaga
raiden
reptile(lizard form)
sub-zero

#1 kung lao
2.frost
3.sindel
4.nitara
5.raiden
6.scorpion

1) Scorpion
2) Noob Saibot
3) Sub-zero (deception version)
4) Lui Kung
5) Raiden
6) Sektor
7) Nitara

1. Reptile is My favourite character
2. Scorpion love his spear move.
3. Kung Lao love his hat move.

I've always liked Scorpion and Sub-Zero. Mavado was awesome in Deadly Alliance, I wish he was still around in MKD. But for Deception I'd have to say Kira. Everyone says that she sucks, and she's also at the bottom of the tier list. Could anyone tell me why she has such a bad reputation? I haven't played the game enough to know why.

1 Sindel 2 Rain 3 Kitana

#1)Liu Kang
2)Scorpion
3)Sub-Zero(younger Brother)
4)Kung Lao
5)Sonya
6)Kitana
7)Rayden
8)Johnny Cage
9)Jax
10)Baraka
11)Kano
12)Shao Kahn.....
(actually I like all of the MK Characters..... except Kobra, Kira, Darrius, Mavado, Havik, Dairou, Hotaru, Shujinko, Hsu Hao, Mokap, Blaze, and Jarek, and Kai...those are the Characters i Dont really like....)

1)Reptile
2)Liu Kang
3)Goro
4)Kobra
5)Kung Lao
6)Sub-Zero
7)Ermac
8)Rain
9)Noob
10)Rayden

I also like Dairou and Jade.