I'm going to buy the Zarya and Mei skin if they don't drop for me this week.
I can handle a Mercy or Pharah fine in "open" maps or long stretch areas but for places like Dorado it's difficult, the Pharah or Mercy can just retreat behind one of the many buildings or corners and heal up. Happened to me in a game I just played, I killed them a few times but would have been a lot more if they didn't retreat and I'm not going to over-extend to finish the job when we're on defence and I'm the only dps. We still won, the Mercy was stuck to the Pharah for the whole round and their Zen couldn't keep up with the damage we were laying into the others. I guess that's the only advantage, if you focus the troops (especially supports) on the ground, Mercy might have to break off and help... unless she's in a duo stack with the Pharah, in that case, gg for the rest of the team.