Good on Lego for putting Castle back in the mix. Splitting the Castle and Space votes was not smart, but at least Classic Space came through.
Bionicle is the exact reason that Lego is not going to be transparent with this second vote - at least not initially. There is no way that they allow their 90th Anniversary Commemorative Lego set to not look like a Lego set! I guarantee that there will be more votes against Bionicle than for it, and even if the three reasonable choices (Space, Castle, Pirates) somehow split the votes just right, and allow Bionicle to have the most votes, we will not see a Bionicle set sporting this 90th Anniversary badge of honor. Count on it.
On the other hand, if Space, Castle or Pirates wins the vote, then I could see the second vote suddenly becoming transparent.
FWIW, I voted for Classic Space. I grew up on Blacktron and still love those sets. In the comment section of my vote, I asked for a 4000+ piece set, with a nicely detailed base, a large ship, at least one smaller ground vehicle, and lots of spaceman/woman minifigs - hopefully in different colors, and maybe including a brand new color. In my mind, it's a combination of 6987, 6954 and steroids!