Well, that was harder than I thought at first look. Overall, I like the simplicity of the Borzoi with the trophies, image #1. Followed by the 7 Groups, image #2 and then image #3.
However, given the objective of the poster, one breed may be inappropriate to reflect the breadth of the AKC's involvement in this sport. While the last image reflects the broadest range of dogs -- and does so remarkably well -- it's just a bit busy for my tastes. So, #2 with each of the 7 Groups represented, does a great job.
Very nice, PeggySue. Wish they had looked for submissions this year.
Jim