Sweep is good, since in corner you can link it from Sonic boom, they are knocked down, and you begin corner preasure (we all know how strong this preasure is).
Guile High Kick should be slightly faster, and if possible change motion to 3 kicks, just to make it more usable, it is kinda shame that this move potential is ruined from its motion.
If Soul Throw is juggle-able, so must Guile air throw. But still, I cant see why people want Air throw to Sonic boom, unless they want it for a one time awesome event for laughs… But it WILL make Guile look cooler, so it is ok. Not game breaking or anything.
His other footsies have potential, but right now they either lack good speed (Cr.mk needs to be a 1 or 2 frames faster), or lack some hitstun (Cr.lp should atleast be 5+ on hit, not only for the Cr.lp -> Cr.mp link ease, but also Cr.lp -> Flash kick and other possible stuff, and if it is 5+ on hit then punishing would be a lot more easier, good example of possible punishes are Cr.lp -> St.Hp xx Flash kick)
His current damage output is not high, even when punishing (excluding ultra, or super to ultra, as rare it may occur), so I think it would be also better for Guile to have some damage boost (slight damage boost) in his normals.
His super is good, and it would be better because we can (hopefully) do Super to Air throw in corners!! (Hopefully)
His current ultra should Auto correct, like how Bison Auto corrects after J.mp to ultra. Or make the maximum damage comes from the final kick. It makes me sad how the camera zooms in at Guile’s face, and he of all people knows how sucky the final damage is… it is like he is sad or crying…
Like always only slight tweaking is needed, he got the tools (Sonic boom and Flash kick… and his normals), they need to be refined and tweaked, thats all.