If you want to play mostly fighting games, the Happ competition and Happ concave buttons will feel the most like the originals. You have to buy for what you want to play the most, because there is no single joystick that will feel like all of the originals. The competition seems to be the best for hitting the corners, since the pattern feels a little bit square. The super pattern feels more like a circle, which would most likely feel better in games where you make circular motions. The sanwa's seem pretty popular, but I have not tried them so I don't know how they are. The safe bet is to buy a happ comp and super - they are less than $10, so you can afford to experiment a little. If they aren't what you want, then try out the more expensive sticks. My favorite 8-way is the Wico leaf switch version. Unfortunately, they haven't been made in a while, so you have to find them used or NOS - well worth the effort though. Again, it is all about the feel. If you grew up playing fighters that used the Happ sticks, just get those.
I have been playing arcade games since the late 70s, and I can definitely appreciate the differences in all of the sticks, and I want the originals for every game I want to play (I think I currently have over 50 sticks). It is important enough to me to go through the work and expense to have the originals available. That being said, I will usually put 2 happ comps with 6 buttons each on the cab when people are over (unless someone requests something different). It covers a ton of games, and most people are familiar with the layout. Other people go with 49ways or u360s to get the functionality (but not the feel) of all the different types of sticks (4-way, etc).
All you will get on this question is opinion because that is really all there is too share. It is kinda like asking which is better: Coke or Pepsi? It is all subjective. I suggest starting with the Happ stuff because it is the cheapest. If you decide you want something else, they will make good spares or; sell them to someone else.