Unfortunately, like dialect recognition or speech synthesis (think Siri), mapping is one of those technologies that can’t be fully incubated in a lab for a few years and unleashed on several hundred million users in more than a 100 countries in a “mature” state. Thousands of reports from individuals around the world, for example, have helped Google correct countless mapping failures over the last half decade. Without this public exposure and help in the field, a mobile mapping solution like Apple’s stands no chance.
So yes, Google Maps is years ahead of Apple’s and they’ve got a huge head-start. The more it’s used, the better it gets. I guess the only thing we can really do is wait for the maps to get better and use what we can.