Appreciate the response
A lot of what you listed is Mu specific or things that Jax can either turn into an advantage or avoid using entirely.
Like I don't think F2s hitbox is important at all. I'd argue he doesn't even need to use that string in footsies. But the fact that it works most of the time vs most characters is just a bonus
B2 being punishable is Not the case vs most of the cast.
Don't think he has a hard time vs zoning at all when you can reaction armor most things if you feel like it, and not like zoning is particularly strong in this game.
having bad A-A is whatever. He doesn't need to go to the air at all
The difficult midscreen combos are legit why I don't play him seriously lol
I'm not saying he's unbeatable and there are no options to defend against him. I just really think he has every tool you need to be a top top tier character, and no real glaring weakness that makes a given Mu truly bad
You on Xbox by chance? I'll work on the MU if you want.
His F21 is probably his best normal, so I do think the wonky hitbox hurts him in a lot of matchups (Female characters + Raiden). I would really like to see this fixed, even if they scale down his damage output or something in compensation.
There are plenty of options to defend against him. Armor reversals inbetween pressure are the best option. Backdashes inbetween pressure can screw up his pressure and open him up. Blocking and counterpoking work just fine if you know his frame data. There are some characters that struggle against his pressure because of slow normals, but most have nice armor options to compensate (i.e. Kenshi). Most players try to jump out of pressure, which is a really bad idea. His best normals are also his anti airs and can lead to 27% combos.
I agree that he is very strong and well rounded. He has good mixup, dmg, and block strings and is a pretty safe character.
Nevertheless, he is technical to pickup and doesn't have anything particularly "cheesy" about him (ie: OP specials, half screen NJ2's, Vortex, etc). As far as normals are concerned, yes they are S tier, but that's only one aspect of the game. His pokes are good, but not amazing (no poke that makes him low profile, and there are several characters with 6 frame pokes. Jax's fastest is 7).
Finally, I'll just say that if Jax was #1 or even top 3, I would expect him to take more tournaments by now