There is no such thing as the best breed or by extension the best assortment.
I equate it to the best song of all time. It doesn't exist. One may like country, jazz, rock, reggae, big band, classical, etc. generes, so one person's best song of all time may be hated by another.
To come to a site like this looking for what may be best for them isn't really good advice because what one person thinks is best - is best for them in their opinion.
One looking for a rare breed assortment needs to understand all the individual breeds' characteristics and determine how each breed in that selection fits their personality and what they desire.
I believe the following breed charts should be perused and make a chart of what characteristics they desire and rate them and then compare to each hatchery's selection.
http://www.albc-usa.org/documents/chickenbreedcomparison.pdf
http://www.sagehenfarmlodi.com/chooks/chooks.html
A Barbezieux chicken may be the best fit for one person and a Serama may be the best for someone else. To ask everyone else what is the breed selection for them will only confuse the issue.
To base a selection on what others suggest may be ignoring some of the hundreds of breeds that may be best for them.
I sincerely hope this post isn't taken the wrong way but it is reality. Some people love Pomeranians, some love Border Collies, some love Alaskan Malamutes. I don't think any of those people would be happy with the other breed.