Of the names on this list Liverpool have made impressive signings, not hesitating to spend big to bring in high quality players, they know Man City won't be sitting idle and will want to reclaim the title this season but given Liverpool preparations, I still consider them the top favorites and likely to retain their title, Chelsea and Arsenal are also making significant improvements, I think the upcoming season will be even more exciting as we'll be treated to some impressive performances from their new players.
Liverpool and Man City may indeed have a good plan next season and certainly by recruiting some of these new players have a very good goal to get the title. But I'm not sure of Arsenal. Because every season that I always remember only Arsenal always experienced a decline in performance at the end of the end of the season and failed to take advantage of his best opportunities. And I will actually support Chelsea more than Arsenal, although the same as being pursuing new players in the transfer market, but I believe Chelsea will actually provide fierce competition for Arsenal and even Arsenal will no longer be in the runner up position like the previous 2 seasons.