Dont worry about double posting, I do it alot! the Adon forums are pretty quiet 
Honda - It used to be one of Adons bad, I actually feel its fine now. He cant do anything on wakeup against you, and although he has good health and damage. Adons damage output is now better than Honda’s imo! nj.hp (aka the stop sign) can be a pain, but like all neutral jumps cr.hp is awesome! or you can just dash under him and mess up his charge. Then again I havent played any amazing Hondas in a while.
Sim - Since ex.tooth was buffed, definitely not a bad match up to me! Adon has plenty of ways to get around fireballs, and with tooth he can get in also. Previously he couldnt use tooth as sims slow fireballs would catch you, or you had to leave it late and get AA’d. Obviously there are times when you wont have meter, but even then I feel Adons jks outclass anything sim can do, and Adon has plenty to keep him on the opponent! I felt this match was just about even in super.
Elf - I am not sure on this, dont play many decent elfs. However Adons RJ auto corrects well and has plenty of invinc, which shuts down wakeup shenanigans. You can afford to leave it last second provided you can do the motion fast enough. You also have better pokes and jks will knock him out of ‘dashes’. However as I say, not 100%, but would say even at worst!
Guy - Well this match up is a pain in the ass imo, not sure id say it was in guys favour though!
That flip he does is a royal pain in the ass and the fact he can grab you out of a jk with it and deal huge damage is frustrating! However if you can get him to fight you at the right range I feel there isnt much guy can do to you!
Akuma - I agree that its a bad match up in the sense that, its slightly better for the Akuma player. However he is still a shoto and Adon does well against shotos imo! The biggest killer in this match as far as im concerned is the st.hk and teleport! Suffering both hits even when crouching sucks! and the teleport means the bugger can escape! However we have plenty of tools around fireballs and provided you space it right, hk.jk and nj.hk can deal huge damage to st.hk happy Akumas!
Yun and Yang, I havent played enough of them to comment on who’s favour it is in. If I had to say, id say… Yun vs Adon was 5.5/4.5 respectively, while yang was 5/5.
Deejay - I am so tempted to agree with you here, the guy is a royal pain in the ass! I just hate fighting him. He is really safe and has the worlds most annoying jump arc, coupled with that bloody knee thing! ugh! im getting annoyed just talking about it! However Adon does have tools that cause him issues, jks obviously rock against his fireballs and although he has those up-kicks on wakeup, I never have much issue. Then again maybe I havent played enough of them?
Sakura - not played enough, but her pressure could be a pain for Adon, I use st.lk and cr.mp ALOT in this match up 
Gotta say I am suprised to see no Gief or Hawk in that list. These guys are Adons worst match ups imo! spd’s are the bane of Adon imo as they shut down half of what Adon can do!
Cammy isnt so bad since super, no free pressure, but you are right! she is small and because of that a real pain. But she isnt so bad once you get used to her! I need to play more decent Cammys though 