we have a neighborhood decorating contest every year ... my immediate next door neighbor has always won since 2008. I would summarize his strategy as "put as many holiday-related items in your front yard as possible." It's essentially the same display each year, with the addition last year of some 3d-printed brackets that I provided to help with some of his signage, and a 3d-printed tent stake (sorta) that I provided this year to replace a broken item.
I've suggested to my wife that a potential path to victory would be to buy as many lights as we can afford and pile them arbitrarily on our lawn.