How high do you usually go in PvP? What slice do you usually play?
Ghost Rider is a bit underappreciated, he's not that bad and could probably work pretty well paired with Okoye - his green boosted by her passive could deal a lot of damage. They both have solid Health pools and match damage, so it could probably take you to 900 Points without too much trouble, at least in the more populated slices where there's plenty of high Point targets.