Compared to the last time Google switched mapping databases, which I think was about three years ago, Apple Maps (for my town at least) has been remarkably accurate. For several months, Google Maps was putting my home address more than a mile from where I actually live (right in the middle of a major city, so a mile is a world away), and it refused to parse addresses for at least a couple of major commercial roads with unusual names. I don't think I've been able to find a single comparable problem with Apple Maps. Visual glitches don't ruin my day nearly as much as refusing to parse a business' address or placing it a mile away from where it is.

I still use Google Maps (via the web now), though, since I prefer the way it presents traffic data.