I can totally agree with this. My wife's 6 that I ordered on 9/13 via Jump! is getting priority over the 6+ I ordered for myself via Jump! on 9/12.
You're just complaining to complain now. They ship out based on inventory availability, and they have tons more iPhone 6 than 6+. She is not getting priority, they just have hers available while they haven't received yours yet.