Dunes by far. Sprint speed, slide distance, and chaining on melee so you can finish them with knockout vs starting to generate an overshield for 6 seconds on killing someone who damaged you. Imo oem doesn't give enough for how conditional it is whereas dunes have amazing neutral with good synergy with my favorite subclass.

Dumemarchers: You can use them for solar, arc, or void. So they are more versatile that way. They also give you a boost to sprinting speed. One-eyed, at least IMO seem harder to use in Crucible. Since it’s 6v6 someone else might kill the target who damages you, before you get to them. Otherwise you might get killed before you find them. Anyways, I would pick Dumearchers between those two.

Haven’t used either of those in pvp in a long time

I use neither. I typically am found running doomfangs+sentinel, which is good in survival cause it makes it easier to res teammates. Or I use thundercrash+actium war rig so I can watch in glee as I pelt my enemy with sweet business. [spoiler]nibbles crayon[/spoiler]