As a general rule, the suburbs to the north are not in as pretty a setting and as close to the Alps as the other suburbs, however you can get anywhere much faster. The airport and all major Autobahnen are reachable from the northern suburbs, plus it is a quick drive to the "Olympic" area that Oracle is at, as well as Schwabing
Everyone has mentioned some town names, but no one mentioned Ismaning and that area, which is worth looking at.
I personally have lived in Unterschleissheim
for 27 years, and find the location and infrustructure to be top-notch, especially for children. BTW, the ONLY things that Oberschleissheim
has going for it is the Schloss (Castle), plus it is a few minutes closer to Munich.