There is one way of getting better odds at winning.  Look for contests where you have to do some writing, photography, cooking, make videos, creating scrapbook pages, colouring, etc etc.

I had a friend years ago that entered a contest at a shopping mall.  He had to write a short essay and submit it for a chance to win a Playstation.  The mall only received 8 entries in total.  Tom won the prize.

The more work it takes to submit an entry, the fewer entries you will compete against.  Isn’t a little work worth the chance at a decent prize?