Yes. The main difference being that Greece didn't invade anyone, didn't cause millions of deaths and didn't exterminate 6 million Jews.
Just over-borrowed. And it has paid for it with 5 years destruction of its economy (40-50% effective less buying power per person among other things and unemployment rates similar to the Weimar republic). Hey, Greece didn't even ask for its loans NOT to be repaid -- they just asked for a better deal, without heavy taxation and anti-business austerity measures that prevent development and make it even more impossible to reboot.
The idea that the first case is somehow more justified to relieve is ludicrous -- not to mention insulting to the victims of the Holocaust and WW.
[EDIT] Besides, the main historical reason Germany was "forgiven" wasn't that it had suffered losses too (war agressors have no right to complain about that), but because it suddenly was in the right place to serve as a nice Cold War ally, half to the West/NATO and half to the USSR, so both sides wanted it to be in good standing.