plugin for voting

Hi,
Can somebody recommend good voting plugin for our WP website?
We are video festival and every year we receive about 900 submissions via entry form. Our 3-member selection comity should, under secure login, get a possibility to vote which film we should accept. (that could be YES,NO,MAYBE possibilities),away from the eyes of the public. Idea is that all submissions get to some kind of ENTRY BULK, and from there to work. We prefer free plugin, but we could afford to buy one if not too expensive. It is very hard to find one in the sea of plugins, so if someone no good one we would like to hear about it. Ability of the plugin to easy adapt to our needs is preferred.
We do have custom made plugins for Entry form, but not really satisfied. Would be welcome if someone can recommend this kind of plugin as well.
Thanks a lot,
Filmskisan (filmdream) team