If you didn't see Klaus being gay/bi immediately, I don't think your intuition is very good. I mean, he literally wore a skirt in the first episode. I know cross dressing =/= gay, but come on. Also him wearing man-liner and just being overly theatrical. Was pretty fucking gay, dude.
5's actor was great as a know-it-all old man being cocky as fuck in a 13 year old's body. Ellen Page's character sucked, but not because her acting. I think the character was just shit. The only part I thought was good was when she murdered Pogo. Her asking him if he knew was the only time I felt any sort of thing for her. Still felt she was wrong, but felt SOMETHING for her character.
So apparently the kids are ranked in reverse for power. So 1 is the weakest, 7 is the strongest. So Ben was 6? Weird he died. Also I'm sure everyone would argue 5 is > 7. Probably. Poor Luther, literal cyclops/leonardo archetype. The lamest power, daddy's good boi, and the defacto leader that no one wants to listen to. They should've made him actually really strong instead of sometimes kinda strong.