When I read the comments of Apple co-founder Steve Wozniak in an interview with The Daily Beast, my first thought was "this sounds like an eminently reasonable man making some well-reasoned points." Of course, being an Android site, we took interest in Wozniak's comments on Android's superior (in some respects) voice commands, as well as his praise of its workable built-in navigation solution (something iOS currently lacks outright).
I've used Siri. It's pretty fun (and funny) at times. But in my opinion, it doesn't do many things better than Android's voice commands (word recognition is, perhaps, a little better - though I've not compared it to Android 4.0's instant STT engine, which I've heard is a big improvement).