Legends got worse and worse. I liked it early on but before I knew it, it became a show about strong lesbians and stupid guys and everybody was sleeping with everybody.
I liked Arrow for a long time, until it became about a bunch of teamwork and how people kept having to gain trust and then something about his daughter who was supposed to be bad ass but looked like she weighed 50 pounds.
I liked Flash for a while, until it was just about him getting faster to beat the next villain when speed really didn't have much to do with it, and Iris kept getting in the way(running the team?? WHY?)
Arrow and Flash both had REALLY cool villains for a while. The story for Reverse Flash was great, along with a few of Arrows...Deathstroke, Malcolm was not bad, and same with that magic dude(blonde hair dude).
Then before you knew it, they just made them kinda....silly.
Star-girl I dunno. Annoying kids and it hasn't really made it past that.
My favorite folks were: Arrow for a while, the Atom(till they ruined him too), Diggle, Cisco till he got powers, Elongated Man was getting interesting till they cancelled him, and Captain Cold. Rory till they ruined him also.