Barton is at the Stade Velodrome on a season-long loan deal from QPR, but insists he would like to make the move permanent.
"I don't know if I'll stay. It's not my decision. It's between QPR and Marseille," said Barton.
"If it was my choice, I'd stay here for the rest of my career. I love this place and I've got a great relationship with people here, the coaching staff, the players and the fans. I feel right at home.
"Coming to Marseille is one of the best decisions I've taken. I'm very happy to be here. And not only for the weather, which is fantastic. In England it's very cold. In Marseille the weather's really good."
Marseille are level on points with Ligue 1 leaders Paris Saint-Germain, but Olympique have one game in hand sparking a feeling in Barton that he could taste his first silverware this term.
"PSG have a great team with good players. With their financial strength who can say they won't spend another billion pounds in January?" said Barton.
"They have the means to do that. At OM we've got to take each game as it comes. We don't have a large squad. If we finish in front of PSG then that would be great. I came here to have a great season. Any team finishing in front of PSG will have had a good season."
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