Every year WiWi bloggs performs a ranking of how well they believe acts will perform. They do this in march before any pre-parties and do not change their rankings after. The rankings are out of 10 and generally an above 7 is viewed as very good. It is a good rough indicator of who will do well and the top 20 acts based on odds from April 28th 2018 are also featured below for comparison (from eurovisionworld).
Eurovision 2018 reviews and rankings
Israel: Netta Barzilai – “Toy” (8.61)
Belgium: Sennek – “A Matter of Time” (8.11)
Finland: Saara Aalto – “Monsters” (8.06)
Bulgaria: Equinox – “Bones” (7.94)
Austria: Cesár Sampson – “Nobody But You” (7.78)
Sweden: Benjamin Ingrosso – “Dance You Off” (7.75)
Czech Republic: Mikolas Josef – “Lie to Me” (7.72)
Spain: Alfred & Amaia – “Tu canción” (7.69)
Estonia: Elina Netšajeva – “La forza” (7.67) *
France: Madame Monsieur – “Mercy” (7.67) *
Cyprus: Eleni Foureira – “Fuego” (7.61)
FYR Macedonia: Eye Cue – “Lost and Found” (7.58)
Ukraine: Mélovin – “Under the Ladder” (7.47)
The Netherlands: Waylon – “Outlaw in ‘Em” (7.28)
Azerbaijan: Aisel – “X My Heart” (7.22)
Portugal: Cláudia Pascoal – “O jardim” (7.19)
Italy: Ermal Meta & Fabrizio Moro – “Non mi avete fatto niente” (7.17)
Australia: Jessica Mauboy – “We Got Love” (7.03)
Hungary: AWS – “Viszlát nyár” (6.97)
Greece: Yianna Terzi – “Oneiro mou” (6.94)
Albania: Eugent Bushpepa – “Mall” (6.89)
Germany: Michael Schulte – “You Let Me Walk Alone” (6.75)
Slovenia: Lea Sirk – “Hvala, ne!” (6.58)
Switzerland: Zibbz – “Stones” (6.50) *
Serbia: Sanja Ilic & Balkanika – “Nova deca” (6.50) *
Latvia: Laura Rizzotto – “Funny Girl” (6.47)
Armenia: Sevak Khanagyan – “Qami” (6.39)
Poland: Gromee feat. Lukas Meijer – “Light Me Up” (6.36) *
Belarus: Alekseev – “Forever” (6.36) *
Malta: Christabelle – “Taboo” (6.31)
Croatia: Franka Batelic – “Crazy” (6.19)
Denmark: Rasmussen – “Higher Ground” (6.17)
Moldova: DoReDos – “My Lucky Day” (6.08)
United Kingdom: SuRie – “Storm” (5.97)
Lithuania: Ieva Zasimauskaite – “When We’re Old” (5.83)
Russia: Julia Samoylova – “I Won’t Break” (5.75)
Ireland: Ryan O’Shaughnessy – “Together” (5.67)
Norway: Alexander Rybak – “That’s How You Write a Song” (5.44)
Montenegro: Vanja Radovanovic – “Inje” (5.19)
Romania: The Humans – “Goodbye” (4.94)
Georgia: Ethno-Jazz Band Iriao – “For You” (4.86)
San Marino: Jessika feat. Jenifer Brening – “Who We Are” (4.11)
Iceland: Ari Ólafsson – “Our Choice” (3.83)
View full context on WiWi Bloggs: http://wiwibloggs.com/2018/03/08/eurovision-2018-reviews-rankings-wiwi-jury/
Full odds table: https://eurovisionworld.com/odds/eurovision