Gold rolls suck. I can tell you that much. Too much crap mixed in with the decent stuff to be worth the number of tickets.
Whatever I feel like at the time.
"If I had Force powers, vacuum or not my cape/clothes/hair would always be blowing in the Dramatic Wind." - Tenzhi
Characters
Bronze rolls supposedly give the best bang for your buck, but you're very strongly at the mercy of the RNG. It looks to me like doing that mostly gets you garbage that won't sell, a few bits that people will pay pretty well for and make up for the garbage, and sometimes you strike gold (such as Regenerative Tissue unique).
If you want a more reliable return, I'd go for random common salvage in the 26-40 range. It doesn't matter what you get, there's going to be some demand, and it's only eight tickets.
What are people spending they're AE tickets on? What generally gives the best return?
Rare Salvage or Goldclass Rec rolls... and what lvl range? I'm generally finding better drops in the 1-14 range...