Have to consider that the maxes are different, but still I take Rondo. Bledsoe had a great year, but players have definitely been known to have great years in their last year before FA. I think the injury situations to these two guys is a wash. I think the Suns have to sweeten the deal with TJ or Len. I'd do (think salaries work but not sure):
Rondo, Green, Zeller for Bledsoe (S&T for max), Len
Rondo, Bass for Bledsoe, TJ
or even
Rondo, Green, Sully, Zeller for Bledsoe, TJ, Len
Suns might prefer to give a pick than to give either of their prospects, but I'd value either prospect far higher than any picks they could give.