i think spain is not as strong as in the past, germany is not as strong as in the past, brazil is not as strong as in the past... in this list of countries you mentioned i just agree that france is more strong. In this world, strong teams are:
Belgium - they have a very strong team that can win world cup
England - they have a strong team this time that can win world cup
Argentina - also has a strong team that can win world cup
Brazil - they are not as strong as in the past but they have a chance to win the world cup
France - also has a strong team that can win world
I am from Belgium so I will root for them but I doubt that they will win the world cup. They have a very good team with brilliant players (Hazard, De Bruyne, Courtois, Lukaku,...) but for some reason they never capitalise it. This world cup is in fact the last chance of the current team as some players will probably start to retire after the world cup.
If I would place a bet on who would win the world cup it would be either France or England.