Martial Arts advice

Such interesting points of view. These are mine. These are only my opinion and may not stand up in a court of reality...
In SA, and therefore my mindset, is that Kung fu takes to long to learn and doesnt help. It makes you tough but the moves are to complex for a fight.
I had a mate who was very very good had his ass handed to him by a guy who did valetudo, and offshoot of BJJ. The Valetudo guy even said he would only do stand up as thats what my mate did. He swapped over to Muay Thai and later valetudo.
Karate for me is a poor form of martial arts. The guys think that they have 1 punch knockouts but never hit anyone ever.
Capareiaiaero is to difficult to spell. I know i cant do it as i cant even hand stand.
Judo is great, but it is an olympic sport. Very technical.
BJJ is amazing for the grounding if you want to get into street fighting then thats a good start. Learning effective take downs for a stand up opponent is worth while. Arm locks/bars, strangulations, body control is very good. But this and judo take huge amounts of practice to get right. But less so than becoming effective in my opinion with the chinese martial arts.
Thai chi is a tea.
Fencing is eligant. But only ninjas can carry swords without anyone noticing.
Martial arts will get you tough. The tougher the martial arts, the harder you are, the better you can handle a beasting which gives you a chance to get back or run. I dont think just gym can give you that. Bigger is normally better. Heavies tend to beat rakes.
Thai is brilliant but early shin cancer. Simple easy techniques like boxing (i have the utmost respect.) but you learn to protect your lower half though at a cost as you open up your guard more. But you learn to use your knees and elbows which are very effective short range weapons most people dont know how to use.
Boxing, proper ring train boxing, would do better than most things as its simple and taught in sparring.
Silat i have no opinion other than i would love to have learnt to fight with sticks as a child.
Krav Magda is a new age MA. I think i will wait and see. The good practitioners are military, i think they would be good at almost all MA.
As said, body shape is important, as is your weight. But better yet is reaction times. Darwinism.
There is a new one that looks quite interesting but its very much like the principles of Krav and MMA where they adopt the things that work for the 'head' of that form.
Taekwondo (TKD) is brilliant for kicks. But its like boxing in reverse. I had another friend who broke her hands (unrelated) and someone forced a fight and she kicked him in the head when they were nose to nose. It put him down long enough for her to walk away unscathed.
Surprise i find is an awesome tool. It covers "hit first hit hard win" tactic (which i dont aprove of but almost cost me my eye). If someone is not expecting you to kick them in the head, youre at an advantage. If they dont expect you to take them to the ground and submit them, then youre at an advantage. Advantages are short lived.
Fighting groups, odds are, youre not going to win. So dont try. No group will wait for you to finish 1 then the next. And even if you did, most people will be spent on the first fight. Gustos gone and that means running is gone.
Most of this is my thoughts on martial arts from a controlled environment.
You want street fighting, get on the street, live the life, but also fight for your life.