I've been watching these shows on the UK airings, so have only got to the mid-season breaks this week. Some stray thoughts:
*All the shows are hitting a higher standard this year. Legends is genuinely fun rather than fun in a trashy way, Supergirl has stepped up and Arrow has improved greatly from last year's tedium.
*Legends has improved partly from dumping Rip. I'm wary of his teased return (though I suspect he's lost his memory and that film is made from fragmentary bits bobbing to the surface), as Sara fills the leadership role more naturally. I like Nate, but his costume is awful. Looks ridiculous and plasticy with pads and helmet that make no sense for a guy who can turn into steel. I hope they improve the Atom suit soon as well.
*I can't believe they're using Ragman on Arrow, but I greatly approve. Roll on Detective Chimp!
*The crossover was a little underwhelming. I can see the logistical problem of working Supergirl in given it's on first in the week and the red sky nod was nice, but nothing about the initial team up really felt valid. Some aliens run past Barry so he gets every super-person he knows (including from an alternate reality) except not the Hawks, for no real reason, or Jay and Jessie? Was that the best they could come up with? I guess they're edging towards setting up the JLA and the Hall of Justice, given they inexplicably kept calling the hanger a "hall".
*How many evil speedsters can they have left to use on Flash? It doesn't inspire confidence that the only big bad Flash and Arrow have used that isn't broadly a dark reflection of the hero is Damien Dhark