Hmm, when ranking I think it is better you leave the designs you like visible, instead of removing them. As of now I have no idea which design you like or which one you think "pop out"...
Or write comments like "#24 - really po out I like it but change text to green..."
Also try to rank 1-10 with different design so that other designers see what styles you like and can contribute accordingly. When the contest is over the top ten get points, points that then is used to rank designers and that indicate the success rate, aiding new clients to search for good designers.
Thnx
Akerman