As usual I don't know anything about anime, really, so might not "get" that some of the animation is SECRETLY GOOD if I know about anime or that that one character being annoying as fuck is like that ON PURPOSE because anime.
3.1 - I was a bit lost at first as I didn't realise this was a sequel to the very first episode of season 1. But it starts with two (not completely evil) Sith having a duel in a gambling den built inside two AT-ATs, then a revenge-crazed Jedi arrives and it gets pretty spectacular. Then the EWOKS show up and it gets even more awesome. Great visuals and fight scene, a must watch.
3.2 - This felt very stereotypical anime to my unsophisticated eyes. In that I didn't like it much at all...up until the part where the main character's droid turned into an X-Wing Iron Man suit for her and she flew around a bit. That almost justified its existence.
3.3 - A sequel to The Ninth Jedi (which is also getting a spin-off series) from season one. Sadly not as good as that episode as it felt a bit drawn out and the fight at the end wasn't long enough. Still quite good though.
3.4 - Pretty standard story about some bounty hunters turning against their employer to rescue children. Not much to say.
3.5 - I hated this one. Some annoying kids being annoying on Tatooine. Felt much long than its runtime. Only good part was the droid/bear thing? Nah, I didn't like it.
3.6 - Another pretty standard story, like just redoing bits of Star Wars in anime, but I liked how scary the Stardestroyer was.
3.7 - This one felt a bit more involved, like the setting and characters felt like they existed to be more than just this one episode. So I'd recommend it.
3.8 - A Padawan is blinded and has to battle the dark side in her mind. Looks nice but didn't grab me.
3.9 - Okay, I'm not entirely sure what's even happening here: I think it's a Stormtrooper dying during the Battle of Endor and having flashbacks to his life...while also dueling with another version of himself in his mind? But it looks absolutely amazing and should be watched for that reason.
So yeah, the first and the last were the best episodes, watch them and episodes 3 and 7 if you want.