Showing Clark's dedication to non-violence. That sequence of him very calmly assessing the situation and doing really cool super-feats just to pull Kara into a hug is fantastic.
Staying true to keeping Lois and Jimmy involved
Finally bringing in the Sun-powered thing
Leaning into Clark and Kara bonding as kryptonians. This show is very good at developing releationships and showing why different character work together. Even if they never do the reconnecting with his heritage-bit having someone in his life that he can be fully himself with, including not worrying about breaking them because he didn't keep himself in perfect check, is interesting.
Speaking of different characters working together, I really do like how Clark and Lois resolve all their relationship issues. I love how pragmatic Clark is about the fact that he can fly to Gotham in a microsecond to be with Lois if need be and Lois still turns down Vicki Vale not only to stay with her friends and boyfriend but for her own reasons.
Brainiac just, doesn't work for me. At all. His design is really boring (when he isn't possessing Clark) and his personality is all over the place in a way that just doesn't make any sense. He is a complete drama-queen which doesn't mesh at all with his "I am following my prime directive of restoring the Kryptonian empire" schtick and his few bits of nuance (like his supposed fatherly feelings for Kara) go nowhere.
I really hate the revelation that he blew up Krypton. For a myriad of reasons, including several plot-holes.
It's unnecessary. There is already plenty of reason to fight Brainiac and it robs whatever this other civilization is of the responsibility for destroying Krypton. I know the general position on Krypton being destroyed has been "meh" so far but facing off against the people who annihilated their birthplace would at least be a somewhat interesting development for Clark and Kara in the future. Facing off against the people who fought a war but were about to announce a ceasefire, not so much.
If Krypton blew up because of Brainiac, why did Jor-El say it was because the empire finally picked a fight it couldn't win? Brainiac explicitly states that Jor-El knew what he was about to do so why would he program his holo-self to share false information?
If Krypton was on the verge of a ceasefire then why the fuck were those warrior-guys on Zero Day all geared up to fight and conquer Earth? It couldn't be Brainiac because he wouldn't have interupted his own invasion by blowing up the planet.
They somehow made Livewire's armor even more bulky and ugly. That is such an impressive feat I almost want to put it in the "good" list.
Speaking of which, all the villains from last season showing up to help should feel like a really cool and rewarding moment, except it isn't. Since there is absolutely no work done to develop them as characters it means nothing. Especially when they try to have playful banter about being friends now.
I know I keep harping on this, but all of the supervillains have really boring and ugly costumes and it is really noticeable when they are all in a shot together. Why are they all beige? Don't any of them have enough individual personality to at least accessorize?
Oh, and it turns out another downside to giving everyone the same "Kryptonian tech" explanation for their powers is that they all get the same weakness. Because why would we want our characters to be different from one another?
Sam Lane coming back to help goes nowhere. Him leaving again was a big deal for Lois but she doesn't interact with him at all. This wouldn't bother me so much (it could make for a good subplot in S3) if he wasn't right there at the celebratory BBQ chatting it up like he isn't a compulsive hardass and loner.
I sound more negative than I really am though. The good parts of MAWS are really good and they carry the show just fine. I just wish it was better than "just fine".