Who would win in a fist fight...

[Baritsu Master]

You're right. It would have been great if Ran did Judo--much easier to compare with Aikido than Karate. One can't have everything, though. One must have evidence!

[Silver1412]

I practice Karate myself so... GO RAN-CHAN!!!  >:D

[kyuuketsuki]

I practice Karate myself so... GO RAN-CHAN!!! 

I loathe when people say that... In Japan when one says that it is assumed they they practice sports karate (like Ran). If not, there are many styles. Kenpo, Kyukushin, Shotokan....

[Baritsu Master]

Don't forget Goju! Spent five years in Kenpo before getting my dan in Jiujitsu. Studied Kyokushin later for a year or two.
Saw a program listing what one channel (Spike?) considered the most lethal arts. Karate was high on the list.
Aikido wasn't mentioned, but then it's point was not to inflict the most pain. It's founder, Uyeshiba, was a peaceful man.
My money's still on Ran.  I could watch that girlfight.

[ProfParanoia]

Don't forget Goju! Spent five years in Kenpo before getting my dan in Jiujitsu. Studied Kyokushin later for a year or two.
Saw a program listing what one channel (Spike?) considered the most lethal arts. Karate was high on the list.
Aikido wasn't mentioned, but then it's point was not to inflict the most pain.

Well obviously there is more then three, it was basically the point of his post .

Also a "most lethal" list is rather silly.

[Shuusgirl]

Even if Kazuha's moves are more defensive, she wouldn't tire as fast as Ran.  It's way tiring to miss, more tiring than to hit your target.  So, if Kazuha didn't get hit, she'd probably win. 
And if both Shinichi and Heiji were there...that'd be anyone's game 'cause neither one would want to look bad in front of their boys.

[Baritsu Master]

A most lethal list IS silly. It's the fighter, not the art. For the most part, at least.

OTOH, how many people have we seen Ran take down, and how many Kazuha?  I wouldn't want one of those kicks she gives, where the teeth go flying.

[ProfParanoia]

A most lethal list IS silly. It's the fighter, not the art. For the most part, at least.

It's really more intent of the training.

I don't think we've seen much of Kazuha, in canon at least.

[Baritsu Master]

I've got the scoop on Richard Moore/Mouri Kogoro. In episode 28 (which has the infamous Ran/Conan hot springs bath scene) Richard attends a reunion of his college Judo club. They tell Ran that in spite of him calling himself a genius, he generally cut class and never won a point in a tournament.  Ran gives no indication that Richard ever taught her anything about Judo, despite his bragging about being an expert.
He certainly isn't the 'ace' many websites claim he is.

[ProfParanoia]

He certainly isn't the 'ace' many websites claim he is.

They are probably referring to the ability and not the competence.

[thorongil]

i would say Ran because in the manga kazuha only has 1 or 2 appearances using aikido whereas ran... you know is always kicking or punching something to pieces or defeating some bad guys ... as for Judo... while reading the manga i only got that kogoro is an ace as long as he is not competing in a tournament cos he has stage fright and always lost within the first few rounds (stated in the reunion chapters) and just taught his wife what he knows ... first appearance of Eri proves this as conan says he saw that throw Eri did somewhere before

concerning the bullet dogding incedent of movie 13... i came to the impression that Ran scouted the movements of Irish's triggerfinger and in the moment he started to move it she started to dogde... this is still only a small amount of time but much more realistic or so i think..

[Abs.]

Ran's bones are made of adamantium. How else do you explain File 5, Page 6 (kidnapper with bat), or of course the oft-referenced pwnage of metal street pole or destroyage of Kogorou's desk, etc.

[CarpetCrawler]

Ran's bones are made of adamantium. How else do you explain File 5, Page 6 (kidnapper with bat), or of course the oft-referenced pwnage of metal street pole or destroyage of Kogorou's desk, etc.

In reality, Ran's outer skin is hiding what truly lies underneath...

Spoiler:

[Baritsu Master]

Lol! Cyborg Ran!

  It was in episode 33 that Ran's mother first appeared. She threw the killer with a judo throw, and Conan says to himself that he had seen Ran use the same move. Also, in the first epi, Ran slugs Shinichi with a judo gi. You can tell because it is quilted. Karate gi's are woven or plain canvas.

[ProfParanoia]

  It was in episode 33 that Ran's mother first appeared. She threw the killer with a judo throw, and Conan says to himself that he had seen Ran use the same move. Also, in the first epi, Ran slugs Shinichi with a judo gi. You can tell because it is quilted. Karate gi's are woven or plain canvas.

Again, knowing 1 or two throws doesn't mean you're a Judo champ and Karate does have throws in certain teachings. Also if Ran was proficient in throws or grappling she'd use it.

Second, you're telling which gi they used based on a cartoon by someone who probably doesn't have any real knowledge of such things and wasn't going for anything specific..Also Ran does competition, so she may have bought one based on that, idk what her clubs rules on that are.