I thought everyone was of the same belief as mine: the most trade-able players are Bass, Lee, and Melo, and to a lesser extent Green and Sullinger.
Collins, Wilcox, Joseph, and Barbosa aren't very trade-able because they won't fetch much, although Joseph could be a bonus piece in a big trade.
Rondo, Pierce, KG, Bradley, and Terry aren't trade-able for obvious reasons. Green and Sullinger fit more in this category than in the "not fetching much" category.