Arsenal have been more inconsistent this season than Chelsea, but I wondering why no one is talking about them, but everyone's talking about Chelsea as if any one of us expected them to win the title this season.
I think the reason why Chelsea have gotten more attention from the media concerning their performances this season when compared to their city neighbors Arsenal is because they started better than Arsenal and were been considered by many as a serious contender for the English Premier League title this season.
That said, I totally understand your opinion about Arsenal and why we should also talk about their inconsistency. Arsenal who finished in the 2nd position of the league table in the last two seasons at the start of the season were expected to be one of the major contenders for the league title but surprisingly, Mikel Arteta's men have been too inconsistent. At the moment, I don't consider either of Chelsea or Arsenal as a team that's strong enough to challenge Liverpool for the league title this season so I think it's going to be an easy ride for Liverpool to win the league since reigning champions Manchester City is also having a poor campaign
Arsenal has been very unlucky. We realize that in the last two seasons, Manchester City has been the main obstacle for Arsenal to win trophies. When Pep Guardiola squad experienced a decline in performance, Arsenal failed to capitalize on the existing momentum. Now, that momentum has fallen into Liverpool hands, and they are taking full advantage of it. Liverpool is not getting significant pressure from its closest rivals. Arsenal and Chelsea seem only able to compete for Champions League qualification. Besides, I think Nottingham Forest deserve more attention at the moment, they seem to be more motivated to fight, even though they don't have the squad depth of Arsenal and Chelsea.