For the late symphonies I also like Szell/ Cleveland, and agree that Klemperer and Glover do a very good job as well.
With limited exceptions (such as Quatuor Mosaique), I am not a fan of HIP other than for Baroque music.
Given the two options presented, I would definitely go for the set by Karl Bohm.
Though my preference would be for the Bruno Walter Sony box. It has 9 of the best symphonies as well as the Requiem and violin concertos No. 3 & No.4.