dhama 
Which the objective of a challenge? 
It is to test your creative capacity, your knowledge of the tool and everything that involves your manipulation. 
As award doesn't exist, I see her as a great game (any pejorative connotation), but with results that make possible that you evaluates mainly your work and perfect as much your knowledge as your application. 
You mentioned " prejudice ". 
In a certain challenge, in another community, I suffered prejudice for the used tool, but as it was just opinion of some members, I didn't take seriously. 
Prejudice is badly a that I corroded our spirit, be far away from him. 
 
The vote should be open, direct and explicit. 
Remember that will be human beings that will punctuate your work and the only criterion is the personal taste, and for this the rules are individual. 
 
... you gave a good contribution to this forum. 
 
Hugs.