Color is throwing me off on this one, I think I see the start of male saddle's coming in, but I can't be sure. I'm 60/40 right now on this one being a cockerel, but boy I could be completely wrong too.
Depends on the age.
Comb and wattles are pretty red, and legs look rather large, so if this is a young bird, I'm leaning cockerel, and older bird would change my opinion most likely.
I agree, 6,7,10,15 all seem to lean cockerels if they are 8 weeks old, my experience is that the pullets do mature quick, but nothing with that size of comb and color at 8 weeks.
Would you be able to get a better photo of the top and sides of the 1st EE, pattern looks ok but I can't determine coloration, a good set of photos would help me help you.