For me it went
Spain
Croatia
Austria (that dream is dead now)
Italy
Iceland
And now after seeing the group matches pan out and how every team performed:
Spain (gotta go with the home country, and I still adore their playing style)
Croatia (honestly a great team, getting #1 secured them the on paper easier route towards the finals so if theres a year for this country to make finals, its right now)
Italy (despite playing against Spain, I will root for them in case they beat Spain because Ive always loved Italian football, and Imglad theres no Balotelli this time around to destroy my love for their team.)