#1 - I think a boy but the jury is still out. The legs look fairly skinny but not real skinny. The comb isn't that large and is pink. I do not see any wattles. But the upright posture, body conformation, and curling tail feather make me think boy.
#2 - More sure it is a boy. Wattles and a red comb. Legs not ridiculously heavy but heavy enough. I think I see the start of sharp hackle and saddle feathers.
#3 - Probably a boy. A fairly prominent red comb even if a pea comb. No wattles. Legs kind of heavy. An upright posture.
Sorry but I think all three are boys.