I really don't see why the bookies have decided to favour City in this game,but I see a 50-50 game,infact if we are to look at the favourite,we would say it's Arsenal because they've been able to win City twice this season, although I know this one is going to be very tough because City are at home,and would want to do everything possible to revenge what Arsenal did to them in the previous match, Meanwhile,Arsenal boys knows that if they are to have trophy at the end of the season,they must be able to beat City,and that would give them the motivation they would use in Winning other teams and be able to lift the trophy.
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The chance will always be 50/50 because the odds at the bookies take into account many things but in fact they will not always be fixed as an illustration of how the final result of the match will be.
It will be very tight because Manchester City are unbeaten at home this season and Arsenal are in very good form, but City are often the team that lags behind their opponents but after that they will perform better to finally get the three points.

Arsenal must be able to take advantage of City's negligence in the early minutes and if they can lead by more than one goal the opportunity to get three points is wide open, and the Arsenal squad really understands the importance of this match because it is reported that several players have refused the call to play for the English national team in the current break, it seems they want to avoid injury and fatigue and focus on the big game.