I'm not underestimating Arsenal's hard work this season in the fight for the title, but I'm not sure they're ready to win it. Liverpool has the same points as Arsenal, while Manchester City only has a 1 point gap. It is still difficult to expect one of them to win the title surely, unless the points gap between the three is created this week or the following week.
Manchester City, Liverpool and Arsenal both have the chance to win the title, but Manchester City's chances still seem quite high compared to the other two teams. I know Manchester City is still behind Liverpool and Arsenal, but as three-time defending champions, Manchester City can improve and lead the standings when Arsenal and Liverpool make mistakes.
We can see how Arsenal is really fighting hard for the Premier League title this season and they have done a lot to do everything. But if you look at the few remaining matches, Arsenal will face several teams that are much stronger so they have the potential to lose full points. It is still quite difficult to make predictions about who will succeed in becoming champion this season because the competition is still quite tight with the points difference being so close.
I don't dare say Manchester City has a big enough chance, and vice versa with Liverpool and Arsenal. Because the three clubs will still face several crucial matches where there is a possibility of losing full points for all three and for those who are able to play consistently, one of them will stay at the top of the standings.