Qwark28
Joker waiting room
You can still hit all of those with the crossup J2, WWs spin does not have a hitbox behind her and the spin itself will never get out of any corner setup.In practice, I generally have seen flying uppercut get crossed up, but track and hit me, and it's extremely variable whether Joker stands up fast enough to get a combo in. Superman's rising uppercut functions similarly, except that pretty much guarantees his getting out for free- only option is to duck and whiff punish, and WW twirl thing is another example I can think of.
Plenty of characters are kinda just fucked, but there are some where it's still a guessing game, which sucks for him.