Arsenal definitely have a greater chance of winning the Premier League than Man U. I think it will be tight between Arsenal & Chelsea for the title next season.
Arsenal have a developed system, a midfield amongst the best about in terms of creativity & goal scoring. Although a large part of that comes from Alexis Sanchez & it can be debated whether he's really a midfielder, or a striker.
They have, in Wenger, a manager who knows what it takes to succeed in the Premier League.
They have an ability to start winning streaks and I think some of that must be connected to their mentality. Plus, I think Wenger may have finally identified the weaknesses in their side. They'll have a season with Coquelin & Bellerin playing regularly. So, will be set out for a good start. I doubt that Arsenal will be that active in the transfer market, so this will help with the stability of their squad.
Anyway, I realise that this is a lot of praise for our rivals so I'm going to stop now.
As for Man U, I think people are simply assuming that they'll return to the top as they've fallen. But why should they be restored to the top? Their playing system isn't yet tuned, they're seemingly unlikely to be without De Gea, they have a weak defence. Their attacking players are excellent but with Van Persie & Falcao now having left, or being on the verge of leaving, it places question marks over that part of the side. I think it will be very interesting to see which players the team successfully recruits. I expect the side to finish the season well next year but I think they'll struggle from the off & may take until Christmas to find their form. I wouldn't be shocked if they were outside the top 4 until after Christmas. Mata will be a key player for them next season. I think he had a big impact when he came in to the team last season & he's certainly more than capable of being a game changer.
Oh & I wouldn't be shocked if Walcott has a big season next season.
I'm now ready to be proved totally wrong next season but these are my thoughts.