We all have out favorites and with all those you missed mine, but that's fine. It should be what you like, not what I like. Your goals, not mine.
The phase you are in is hard. It is so exciting, there are so many options. If you are like me you are changing your mind every little bit.
In my opinion breed isn't very important when it come to behaviors. I know you read that kind of stuff all the time on here but my experience is that each chicken is an individual with its own personality. Breeds can have tendencies, but you have to have enough of a breed for averages to mean something before you notice those tendencies. With only 1 or 2 of a breed averages won't mean anything. A lot depends on luck. Another way to phrase it maybe is that with your goals it's hard to make a bad choice. You may have bad luck with any chicken but that's not because you chose unwisely.
I notice you have two bantam in here, the Polish. They have those funny headdresses too. I'm pretty sure Meyer doesn't sex their bantams, I may be wrong and I'm too lazy to go look it up. You should be able to get the other full-sized chickens sexed but you probably have a good chance of getting a boy or two if you order bantams. Some people say they have have trouble integrating chicks with strange feathering like Silkies of strange features like headdresses. Others have no problems with this at all. We are all different and have different experiences.
if you are going o order bantams or chickens with strange feathering or body ornaments I'd get all of them in the first order. If they grow up together there are usually no integration issues but there might be if you add them later. If you get a boy maybe you will know that before your second order, which might alter your second order. This is the kind of stuff I'd worry about instead of if a Flower Hen or OE were better.
