Sorry, but Faora being ko'd by a missile is pretty obviously due to sensory overload, as it was clear the kryptonians couldn't deal with the sensory powers initially.
As to the rest, such as arguments that Supes got ko'd by a falling tower, I mean, Clark took a damn nuke remember? He also walked out of the senate explosion in BVS TOTALLY unscathed. Also, MOS VERY CLEARLY says that Superman is learning his powers and growing stronger. Jor-el straight up tells Supes to keep testing his limits and that he is growing stronger. Why is it hard for people to understand that the Superman we see in Justice League is much stronger than the one we saw in MOS? Hell, we see Superman get stronger and more durable throughout the course of MOS itself.
None of the Avengers have feats that come close to Superman. Seriously. Especially now that he has shown super speed on par with the flash. How do the avengers deal with someone who can move so fast that they are like statues? I would love to hear a reasonable argument for that. How will Thor use his lighting if he's hit 100's of times before he realizes Superman even moved? What the f*** could Hulk do besides get ping ponged into oblivion? In Justice League Supes used his superspeed in pretty much every fight he was in. For most of the Avengers all Supes will need is one hit. The only Avenger that has a chance is Vision due to intangibility, and he is only reason that this would actually be a fight. The people claiming Thor and Hulk have a chance, especially those claiming they would win one on one, are delusional.