There will be a few key matches today, one of which is Aston Villa vs Man City... I think it will be no less interesting battle... Aston Villa are in great form now and can face Man City... I think they can even win... But if there is a draw, the gap between Arsenal and Man City will increase...
Yeah there are few key match today which is Manchester City vs Aston Villa and Manchester United vs Chelsea the two matches is going to be the toughest match today because each team will never like to lose so they will put in all possible best to win, were by making the match to be more tough and interesting.
The match between Aston Villa and Manchester City is going to be something else because considering the current position of Manchester City losing or draw is not really on there agenda this period and also just like you said Aston Villa is also very much in a good form considering there previous performance on there matches so Manchester City cannot easily win them, so is actually going to be a battle between them but however I think Manchester City will win them at the end because Manchester City has more experienced players than Aston Villa.