If you look at the two solutions furthers apart, McLaren and Mercedes,
McLaren has a very large upwards force with little actual movement and a large offset, which makes it tricky on itself plus the possibility of a bit of flex in the wishbone.
Mercedes has the most straight on solution of all the teams, pulling the rod very very straight, without any force off center. Very efficient and precise.
McLaren will never have the same kind of slow corner exit grip as the Mercedes, because it's impossible to have the same kind of control. But they may have a slight advantage on high speed corners with rear stability because their diffuser has a clearer path.