Supergirl and Legends of Tomorrow, but mostly Supergirl, are the main reasons I even still care about any of this.
seriously Supergirl is the only one that is genuinely well written at this point, and I can already see the writing quality drop a little since it's been on the CW. it's like some CW exec monitors the shows and sends someone an annoyed email any time a character is unambiguously happy for 5 minutes. S1 of Supergirl was up there with Marvel's Netflix shows, though.
All that being said, im pretty stoked for the crossover. Not gonna watch it until next week when it's all done, though.