NITDroid because I consider Nokia's stance to be the same as Google's on privacy, with PR 1.2 anyway. On the upside, at least I'd know that the applications coming with NITDroid would be open. (Mind, I could probably say the same about MeeGo reference)

On the other hand, Maemo 5 has GTK which'd want to make me keep Maemo - just for that, even - but its libraries are already aging and it's way too closed source for my liking.