How would we tell who's entered?
This is a bad idea. Like Foils said, builders could be building instead of judging this.
Although we may find decent builders (on a rare occasion) this just seems like a huge waste of time
Maybe we could implement a plugin that does as follows:
Player Commands:
/buildcontest - Main Command
/BC - Alias for Buildcontest
/BC add # - Adds your plot number to the build contest. (1 max per player.)
/BC remove # - Removes your plot number from the build contest.
Builder Commands:
/BC queue start - Starts the queue of added builds, tping said builder to a new build every 30 seconds.
/BC queue pause - Pauses the queue for said builder to look into greater detail
/BC queue stop - Stops current queue in case of any problems.
/BC queue save - saves current build in the queue to a personalized list to review later against all the other that you liked.
/BC queue list - List saved builds for tping. (Shows the plot owners name and plot number.)
/BC vote - Votes on the plot you are currently standing on to win. (For when a builder is on when none of the others are, but still want to participate.
(This could also be changed to a user voting plugin as Bach stated above.)