Concur. It will not be an easy voting.
A phone can have incredible hardware - camera, gyroscope, magnetometer, et cetera. If only it had MeeGo or Maemo or Nemo or Mer or whatever open source operating system is the easiest to port and tune to perfection... Windows is not my cup of tea. XP is not easy to work with, and the later versions of Windows even more so, with their useless Aero interface. Windows is hopelessly bloated; partly due to its backward compatibility (with a 18-years-old application, for instance), it doesn't feel like whole environment - it feels like bits and pieces, old ruins and recent patches.
I have seen Android. Off the top of my hat, two complaints: the same wallpaper on different screens (compare with different wallpapers of Maemo; Maemo's looping wallpaper is a work of art), and continuously beeping camera (I understand that the phone lacks a dedicated camera button, but there should have been a software half-press-capable button, then). I also don't understand at all whether it's capable of multitasking or not: no task manager seen. And getting Internet on phone through USB from Ubuntu computer... is challenging, to say the least.
My gratitude to you, and to everybody reading, and/or somehow involved with Maemo (or any open source software). Good night, and good luck.