For me, it is clear that Portugal has a bigger chance to win because Portugal has a better squad and they just played impressively. They even don't rely on Ronaldo anymore, they already have many top players. Gonçalo Ramos, Bruno Fernandes, João Félix, Rafael Leão, and Guerreiro seem to perform better than Ronaldo in the current world cup tournament. Just look at their stats!
In my opinion, Netherlands vs Argentina and England vs France are more difficult to predict. All of them are big teams and they have quality players in all lines (defense, midfield, attacking), also they performed well lately. I assume the winner of these matches are the teams that have better preparation and play more confidently.
I guess the 4 teams in the semifinal round are Portugal, Netherlands, France, and Brazil.