Irrespective of the contributions (which in some cases are considerable) of the other luminaries nominated, I feel that one of the nominees' contributions probably outweigh that of the others.
From conceiving of an idea to get a new DG started once it was known that the purdue DG was going down to setting it up to scouring for members, posting articles, doing all the programming and maintenance, setting up a front page to enable future growth, working actively to get more views (advertising), and of course hosting this DG using his own money (despite him being a student), Dextrous has in many ways been the EMF and the impetus behind this DG.
Some might disagree with me. some might call this a publicity stunt or campaigning, but if you stand back and ask yourself the question
Who has done the most for the DG?
the response,IMO, is Dextrous for everything that he has done for this DG, and this holds true irrespective of whether you agree with him personally / his opinions or not.
That in short, is my opinion, and I say that after considering the contributions of the other nominees.
At the end of the day, please vote your conscience -- my post above was meant only to ensure that all of us are aware of what each of the nominees bring to the table simply because dextrous' considerable efforts are all behind the stage whereas the others' contributions (posts, threads, polls, discussion, news articles, moderating activities, etc) are visible to one and all.