If the Bills would be the only serious suitor for JB, then I'd much rather take only draft picks from them since they'll most likely have another losing record this season. Although Kyle Williams is 27, I don't see him being an upgrade over what we already have. The Bills even drafted his replacement a few months ago in Torrell Troup so he'll most likely get cut when it's all said and done.
Given that Buffalo is now in desperate need for a quality LT, I can see JB being traded to them for a conditional 2nd rounder, which would turn into a 1st round if he makes the Pro Bowl. Either that or multiple mid round picks.