The season may look to have more to offer but right now we almost done with the first half of the season and any team at a top position and still but in as much effort in the next half of the season can have a very good turn out at the end of the season.
Well if I were to say who would be in the top six position at the end of the season I would say Arsenal at the first position just because I think they are solid and deserve it and then Manchester city, Liverpool and Aston villa then in six and fifth would be Newcastle and Tottenham.
Talking about who deserves it and who doesn't when we have a scoreboard called "table" is quite useless. I think whatever team is at the top after the first 19 games also deserves to be there. 19 games is enough to tell whether a team deserved it to be at the top or whether there was a lot of luck involved. I think saying this after 5 games or so is useless as there is a lot of variance in luck across all teams, but yes 19 games can give us a deserved leader.
I don't see a reason why Arsenal would deserve it more than any other team. Is it because of empathy due to their loss last season against Manchester City in the fight for the title? Or do they play the best soccer in your opinion? Aston Villa plays impressive soccer, maybe they deserve it more according to you.