I've got HD video shot with a Sony Z1. 1440 x 1080.
I converted to HQ from the timeline "with upper field" for use in AE.
I added some Magic Bullets Looks to the video in AE.
Should I output from AE as Progressive or Upper Field order? Stated another way, when applying massive color correction would Progressive or Upper Field order give me the best results? Also, Should I consider lossless rather than HQ?

I'm going to play a bit but thought I should get a second opinion.

Thanks in advance,