I guess I haven't decided

I use different stuff depending on the amount of sizing and the size of the cases to be sized.
For light duty I like One Shot. I can get a little spray inside the necks while I'm spraying the cases, so that eliminates that step. After sizing, I give them a quick shot of brake cleaner and rub them with a paper towel to get most of the excess off - takes only a few seconds for 50 or so cases.
For big cases, e.g., belted magnums and FL sizing, the PDQ-1 by Rooster Labs (I saw it in the Sinclair catalog and thought I would give it a try). It is as good as the RCBS "pad" and a little less messy, tho still
messy!
For case forming, I've come to appreciate Imperial Die Wax. And, I use it for neck turning.
One that many seem to like, and I will be trying out, is the Lee Lube.
FWIW,
P.