1981 didn't offer much new after 1980. lots of cheesy songs, but nothing spectacular.
i really can't say, if any of them was my favourite. i've already forgotten them. except Finland's Riki Sorsa - Reggae OK, mainly because i'm familiar with the song from earlier, but it is a good example of 1981's chaos energy: mediocre song but over the top costumes and stage moves. https://y.com.sb/watch?v=KmLM-IC4wsU&list=PLwVpAwiOa7mDDwSP_grlZgMe4eg3x_5P9&index=4