D.Va probably due to her higher and easier to use mobility.
As for Reaper. We have said what he needs, we have given so many suggestions of what he needs, and they continue to just give him QoL buffs as if that’s what’ll fix him. At this point there really is no more QoL buffs they can give him. Someone on the dev team has to be blindly in love with Shadow Step or something to not see how weak of an ability it is that it hasn’t been replaced or changed in any shape other than it’s slightly more quiet.
Meanwhile Symmetra has a more useful, shorter ranged, version of Shadow Step.