Those figures are not accurate IMO. We are all humans. And one of the greatest strengths (and weakness) at the same time is that we are never happy.

Maemo could be ten times better than Meego or Android, but unless we try another OS we won't believe it. People always want something better, even if they have the best. Personally I am 100% satisfied with Maemo, but as soon as Meego and Android are fully (or almost fully) working, I will be amongst the first to flash my device and try it. But not because I don't like Maemo. It is because I want to try something new.

That poll would be accurate once Android and Meego are available, and users have tried them all. Then one can decide which one he likes best.