There is one way Apple's maps already surpass Google's: no advertising.

For instance the iOS 5 Youtube app never showed ads, whereas the new app store one shows tons of them. Sometimes 1/4th of the screen is advertisement.

I'm sure it will be the same way for maps. Looking up a bus route, looking for used cars for cheap? Oh you are walking someplace, wouldn't you like a bicycle? There's five StarBucks® on your route!

No thanks. If I need the better features in Google Maps then I'll use it, but I'll go with the ad-free version if it works well enough.