What is a 1:1 contest?
In a 1:1 contest the contractor can see all the design entries. In contrast, designers can only see their own designed drafts. During the contest designers can see how entries are submitted but the design entry is hidden. Only after the winner is chosen, all designs will be shown.
What are the advantages of the 1:1 contest?
In comparison normal contests allow, that designers are getting influenced by the submitted drafts of other designers. But if you as the contractor prefer unique designs, which are not influenced by the drafts others, then the 1:1 contest is the right choice! In such contest the other designers, which are competing are not getting influenced by each other.