It's not a like contest. I don't think rigged is the right word either since there is no clear way to determine winners. It's mostly a matter of preference and most people don't usually have the same taste.
As for your entry, some parts of your emblem don't match. The shield and football look well done. The knight looks too detailed compared to the others while the banner with starts looks like it was made on paint (I would know) I'm not saying you stole anything but it's not consistent. Besides your emblem has more than 2 colors (Some winners are like that though) Did you also submit it like that? There was a proper format.