There are so many customization options within the hardware you have yourself, ie obs mx for your sanwas and whatnot. I guess I’ll start simple, and although i havnt tested every combination or hardware, there are a couple things to consider.
For Stick: Do you prefer ball top or bat top? Do you like your stick to be on the stiffer side of the spectrum in relation to pushback when using it? Are you content with your square gate?
Taking all that into consideration, the are four major style sticks to consider:
Korean Sticks:Fanta/Crown
Usually come in a bat top configuration but crown makes a balltop variation. These sticks have a little more pushback than a sanwa in my opinion. The major thing with these sticks is that they are gateless and return to neutral position faster than japanese sticks in general. These are usually considered good for tekken, but to each their own. This stick has a linear feel (same pushback the entire way to activation of the switch).This does not feel like an american battop by any means. Infiltration uses this lever.
Sanwa:
The tried and true, you have experience with this but can be modded in battop, gates, stiffness, silenced switches, and so much more. This stick fits universally in everything and has the most cool mod stuff out there regarding balltops and light up LED’s. If you after a custom look then this is what you should stick with. They primarily make the jlf and jlw, and while the jlw is much stiffer and uses different switches, it can cater towards a person looking for the american joystick feel
Seimitsu:
Havnt had a lot of experience with this stick and have only used the ls32, but its the main competitor of sanwa. A litter stiffer, shorter throw (takes less distance to activate the switch) and slighter lower to the stick. My hands are small so thats okay, but i feel like one would be cramped if they had larger hands (My opinion, not fact) lots of custom stuff for this stick out there as well. It is pointed out below that seimitsu makes a variety of joysticks, and many of them may be different than the standard ls32. Again, i have no experience with the ls 56 or other similar joysticks
Hayabusa:
Hori made. Some say this is better than a jlf. This has a loose feel in my opinion and just offers a different feel. More linear feel? Honeslty i don’t really see the difference (my opinion)
For buttons: Do you like click? do you like a light push or hard push? Haptic feedback? Colors/lights?
There is so much stuff regarding switch and plunger combos, so i’ll keep it simple.
Sanwa: OBSF/N-30
Standard button for most sticks. You have experience with these. This offers the most colors and custom switches and led stuff. If you want the looks, this is what you need to have. The feel is a linear feel and are really light to touch to activate. They have a solid clack sound but do not click. Again, you know what these feel like.
Seimitsu:
Similar to sanwa in my opinion, just a little harder to push.
Gamerfinger:
variety of feelings when pushed because they have cherry switches in them. Do research on the cherry switch and decide what you like. If you feel like you like the feel of something choose that switch, but if you like the look of sanwa look up sanwa obsmx buttons on paradise arcade shop.
Lorenzo/happ:
American galaga style buttons, usually for wood panels. these are probably not what you want, but take some pressure to push and have an awesome click when pushed. Some say they are not ideal for fighting games, but i do just fine playing sf2 on a cabinet. these are the only buttons that are concave (sanwa are convex)
I simplified this A TON and didnt even talk about all the switch mods (american switch in sanwas) and gate mods, sanwa jlw, or any other stick combos out there because there are just so many , so take this advice with a grain of salt. Before you jump on the train of buying every configuration that ever existed, think about what other people play on. If you find yourself at locals and have to use some stick other than your stick, most likely it will have all sanwa components. Thats why i stick with sanwa jlf and sanwa buttons, so i learn the standard configuration so I can play anywhere on anyones stick. If your configuration is so complex to the point where that is literally all you can play on, you may need to reconsider how you use the stick and how you hit the buttons. Again, these parts are all a matter of preference and should compliment what you like (stiffer stick, clicky buttons, etc). This will not fix your execution problems or make you a better player, that comes with practice. Hope this helps. Coming from a person that had to transition from cabinet play (wico stick and happ buttons) to fightstick play recently, buying sanwas are probably the best for newer players like myself. Go with what you know if you are really on the fence, and try out other configs if someone at a local has it to see if you like it.