C'mon man...
It's only the first game, Arsenal may have started good, but nothing is decided in the first week of the season, and, no offence, but it's not exactly difficult to beat Everton at the moment...
We're in this for the long haul, if Arsenal are clear into the sunset by Christmas than maybe you could say that the title is theirs, but i don't believe they will be. Utd are gonna come strong as soon as we start getting players back, never write off Utd, especially so early in the season...