Now that it's been over a year since I stopped regularly watching any of these shows, it's interesting to drop in on the crossovers because what has changed really stands out. Jeebus, Arrow has completely replaced its supporting cast two or three years in a row!
I still love Melissa Benoist's Supergirl. She is terrific, and that's the only show I'd consider trying again. She has mastered walking that classic "Boy Scout" line of being morally pure and still interesting/believable/compelling. Now if I may be superficial for a moment: something's different about her hair/makeup that is not for the better, and forgive me for missing her legs.
Grant Gustin is still solid.
The acting in many other cases has gotten a LOT more broad/comedic/silly. The tone is well on its way to 66 Batman. Which is okay if that's what they want to be, but... is it?
Tom Cavanagh is still annoying when he feels the need to do his whisper voice. Fortunately he dropped it for the version of the character that was present by the end of ep 5.
Agreed on the many deaths of Oliver.
Barry meets movie Barry, and then they just drop it. ????
Nice seeing Kevin Conroy playing Bruce, although of course it isn't the Bruce/Batman we really want to see him as. I couldn't "hear" B:TAS Bats in his voice at all!
The other cameos were welcome, if too brief.
Cinematography nit: Batwoman comments on that dude's abs during a shot where his torso is deeply in shadow. We'll just have to take her word for it.
Always nice to see the Hall of Justice, and it was a thrill to hear the old Superfriends music, even though nostalgia is the only thing going for that show in any incarnation (my opinion of it wasn't high even when I was six years old), and seriously, no one ever liked Gleek. (And if this is an abandoned facility, how long was a monkey left in a cage in there?!)