Johny_X2 said:
The other one is ITF taekwondo. That's the one I do. It was developed for the south Korean military after world war 2 and is in essence heavily modified and updated karate. Taekwondo split into two different organisations that hate each other with a passion for petty political reasons - the whole affair is kind of embarrassing and sad - and while one of them (WTF) kept on changing and over time became more of a sport, the other (ITF) attempted to keep the original military style intact and is, as a result, arguably more useful in the street. ITF taekwondo is essentially a modern spin on karate. You've got your punches and your kicks, a handful of joint locks and quite a few defensive techniques. It's also fun to learn. Definitely worth trying.
ITF ended up being my main discipline growing up, and later on tried some WTF, an introduction to Capoeira and some bad ass ancient karate style in college, and later a Tae-Kwon-Do/Karate fusion. In tournaments I've also done a few kickboxing style single round matches. Let me outline the different styles according to their sparring/tournament rules:
WTF - it's the Taekwondo you see at the Olympics. No feet or hand protection, instead you wear a body pad with targets on it and a helmet. Focuses on quick kicks to 'tag' your opponent. Punching to the head is not allowed, which makes this a horrible style for actual self defense. Maybe you can take someone down with a few unexpected quick kicks, but this style doesn't train you very well to protect your head. To their credit though the chest padding you wear doesn't provide as much protection as you think it would.
Karate - You wear feet and hand padding, kicks & punches allowed above the waste. In a tournament, when a 'hit' appears to have scored, the referee stops you, you separate, and four judges one in each corner determine if there's a score. I believe it's always 1 point. Better than WTF for self defense, as in a real fight you don't stop.
ITF - Same setup as Karate, except tournament sparring is continuous. There will be 3 judges that try to count your 'score', and different hits count for different points. Like a kick to the body - 1 point, kick to the head - 2 points, jumping kick to the head - 3 points. Better again than the two above, but you're still trying more to 'tag' your opponent for a point, rather than actually hit to hurt. When I first started in sparring your told to keep your hits a foot away from the actual person, and as you improve & progress you get closer and closer. This builds exceptional control, but for actual self defense there's a danger of not being used to actually hitting someone to hurt.
Kickboxing - Basically you just pound on each other with basic kicks and punches until one of you get tired or knocked out. This will get you up to speed for self defense quickest and likely the best fitness, but honestly I found it kinda... dull. I mean even if they aren't very practical or useful in actual self defense, some of the more advanced/high flying kicks can be
fun. There's no room for them in kickboxing/MMA though.
Rather than there being a 'best' martial arts though I'm more of the opinion that different martial arts suit different people. And even then so much depends on the school/instructor. The worst ones are overcrowded money farms that rush people through belts because you pay more money for the promotion test and to get the belt I saw this at the WTF school I attended. In my ITF school testing was much more challenging and one on one, we had plenty of space and had sparring every weak. On the more modern MMA style side, you probably need to watch for places that try to sign you up for a year, but then have dangerous training/sparring that's likely to leave you injured and unable to show up.
Talking about different styles though, one thing I've never understood is why modern MMA doesn't incorporate the side kick. In ITF this is the first kick you learn alongside the front kick, and it's basically you're bread and butter. It can be quick, versatile, and powerful. Anytime we went to mixed style tournaments we'd usually dominate with it. It also happened to be Bruce Lee's favourite kick.