Finally got around to watching these after a very busy week studying.
The Flash: A very interesting revelation about Ronnie fusing with the other scientist. The preview from the next episode makes it seem as if it's Ronnie's body, but the other guy is in control. Caitlin's scenes were great, I'm glad the show is finally starting to acknowledge her properly. I also very much enjoyed that touching scene Barry had with his father towards the end of the episode. Barry's new girlfriend seemed kind of shoe-horned into the plot, only there to stir some jealousy in Iris. I don't know much about Grodd, but from the little I have read about him it seems as though he'll be an interesting opponent.
Arrow: Holy sh*t, Felicity was a morally-condescending bitch this episode. I continue to find that I'm liking Laurel now because she's more active in the actual fights and has a lot of courage and spirit driving her. The part where Malcolm was actually struggling as to whether or not to kill Brick was ridiculous, this is a man who slaughtered over five hundred innocent people and worked with the deadliest warriors in the world, and I'm expected to believe he would be hesitant to kill the man who murdered his wife as he's insulting her? Give me a break. There is no redemption for him. On the plus side, I do think it will be very interesting to see Malcolm training Oliver to kill Rhas.