Based on activities in the transfer window, Barcelona looks more active than its competitors I even agree with you Barcelona opens the opportunity to take the title
But somehow some sportsbooks are more favorite Real Madrid

for winner Real Madrid @2.15 vs Barcelona @2.35 and Atletico @6.85
At least we have to wait until the middle of the season to see who is closer to the title.
I didn't know the last condition of the odds for the championship. Barcelona are really close to Real Madrid there according to bookmakers. There is a different Barcelona in this season so everyone is hopeful about them. I'm not surprised with Atletico Madrid's odd by the way. They are still way behind the other two and they aren't making any move for catching up with them. I would expect them to make some decent signings to make their squad stronger for the new season.