I have been happily using Yahoo's geocoding service, with google coded as a backup service. My application doesn't require speed, so I don't know how it stacks

I have been happily using Yahoo's geocoding service, with google coded as a backup service. My application doesn't require speed, so I don't know how it stacks up against google in that regard. I have run into a couple of cases where yahoo's street data was not as fresh as google's.