Update 4/13: Google Maps now in lead over Mapquest, according to Hitwise
Compete.com has shown Google Maps as having more traffic than Mapquest since January. Hitwise on the other hand has Google Maps gaining but not yet surpassing Mapquest. Here are the latest numbers from Hitwise:
Both Hitwise and Compete show an uptick in March for Maps and Mapquest. The more granular view that Hitwise offers, shows most of that uptick occurring after March 28th (the rough start date of the increased local exposure) with Google increasing faster than Mapquest.
Whether this is due to an uptick in pre Easter travel planning or due to Google rollout of increased showing of the Local 10 Pack or both is hard to tell at this point.