I really don't like any of them but for whatever reason the Nationals top my list of hated teams. The Nationals have had better teams and seasons since the Phillies last run of greatness and the Barves before that. I know they haven't won a playoff series but other than 2015 the Nationals just constantly make the Mets their bitch. At least the Mets had a good 3-4 season run where they dominated crappy Phillies teams and the Barves flattened out until a few years ago.
Whatever it is, it looks like the Barves are going back to being everyone's Daddy for another 15 years (at least in the regular season).