I already liked Greta's song in Iceland, but the live performance really elevates it, even though the performance itself is a mix of Loreen and Mans. But the screen is effective, and I love the folk-feel to the song,
Ukraine also has a couple of enjoyable songs, my favourite being Jamala. This is totally different from what I previously knew about her, and given that Supersonic will probably lose in Estonia, I need 1944 to fill the dark empty void in my heart.
I also really like the idea of The Hardkiss representing Ukraine, but I'm not completely sold yet.