Yeah, my original plan was to attack with Rein and defend with Orisa, but even on attack Orisa seems a stronger choice; even though the pushes can be a bit slower due to the barrier being fixed in place, at least I'm not just holding up a shield while marching forward and praying that my DPS can make something happen with the space I'm taking. It's the same reasoning behind preferring Zen over Mercy; yeah, Mercy can provide the best healing and Rez is invaluable, but I have to be able to pop heads so I'm not completely at the mercy of my team. Nothing more frustrating than having McCree and 76 on your team, yet neither one looks up to at least deter the Pharah that's shitting on everyone.