Whoops, just read your description mentioning that the two-tone one has shiny feathers and they look thin and pointy in the photos, so I'm changing my vote to rooster for that one.
The splotchy one is definitely male. I'm on the fence about the other non-frizzle - its markings are sorta roo-y, but its comb development for that age looks female. I'm going to guess two hens and a roo. Beautiful birds!