Well now, I'd hold off on getting rid of this one for a couple of weeks. Wait for the comb to look more like your white&black probable cockerel before doing anything hasty. The color pattern is spread fairly evenly, so a pullet is possible I think. Too pretty not to be absolutely sure. At 6 weeks it's usually the pullets that are not friendly, so behavior-wise, it's often the friendly youngsters that are males.
The black fluffy feathers under the beak make the beard. Muffs are the fluffs in the "cheek" area. EEs usually don't have wattles, and when the beard is absent, the chicken looks really different!
Post pics next week, if you can. I'd really like to see how both look. Keep comparing combs.