Boxing
Kickboxing, Muay Thai
Wrestling, Catch-wrestling
Sambo
Jiu-Jitsu
Judo
Anything else will be a waste of time.
"I can be ruthless and fight to my death but would not like to kill anyone. I know that is similar to Kung Fu philosophy and samurai philosophy but I am more interested in Japan and samurai."
I think your watching too many cartoons therre bud. Samurai are soldiers. A soldiers purpose is to kill.
ANYWAYS. Do kickboxing, you would be sparring and learning more there then you will at a kungfu or taekwondo school.
Kick Boxing is a great basis for a beginner in martial arts. I value your love for martial arts at such a young age, no matter which one you eventually choose, stick to it and you will learn much more than just fighting.
Does it matter as long as it works? Choose the best school; use this website http://mcdojo-faq.tripod.com/
You probally should do taekwondo or kickboxing
i'd say taekwondo
MMA
I am a 14 year old male, and I can't choose which martial art to do. I have done karate, but the school was bad they sold new belts every months along with certificates and didn't care about the skills, only the money. Then I was taught some boxing and freestyle wrestling, and I really liked them both, but where I live, there are no places to learn wrestling and boxing. Recently I tried Kung Fu, and again the teacher only cared about selling belts and certificates ( although there are no belts in real Kung Fu). Then I went for jiu jitsu, and I really liked it, but in Brazilian jiu jutsu fighter concentrate on ground fighting and submissions and I don't really like that. I am 170 cm, weighing around 60 kilograms, I am stronger than most of the people I know, and stronger than all of my peers even those who do martial arts. I am quite humbly, but most of the time I care about honor,pride and glory, I like meditating, and I was in a gymnastics team, as well as X-country and swimming and practiced dodge ball. While fighting I have compassion for the opponent, but it depends on the opponent, I can be ruthless and fight to my death but would not like to kill anyone. I know that is similar to Kung Fu philosophy and samurai philosophy but I am more interested in Japan and samurai. I would try Judo but I can't find a place to learn it, I live in Sharjah, so if you know any place I can learn judo from please tell me. So what should I learn karate,Kung Fu, iron buffalo fist Kung Fu, taekwando,BJJ,kick boxing.
Note: I cannot do Krav Maga, and I have/ had osgood schlatters, it have been two years and I think it healed.