Random thought on Chun vs. Guile: as far as I can tell, Guile has the potential to do standing anti-air against all of Chun’s most common jumping attacks from medium-far range. If he can position himself perfectly, he can do a s.far strong at just the right moment and distance so that the second hitting sprite (arm extended in the air) barely connects with jumping Chun’s hitbox. This will cleanly beat her j.short, j.forward, j.RH, and j.fierce. Her j.jab and j.strong seem to randomly trade.
Luckily, it seems only the very best Guile players know about and can execute this consistently, but if they do, it can make a barrage of Sonic Booms a lot more intimidating, and you can’t just rely on being able to j.forward over his Booms on reaction from long range.