Well, according to Baldandscreaming.com's handy infographic on collected tournament results, Grey Knights and their generals took home the majority of 'ard Boyz placements. Whether this means more players played Grey Knights or the better players played Grey Knights or more people played GK than any other army (and hence more finshes) or that people still haven't adjusted their play to the newest army isn't really revealed here.
DakkaDakka poster Thunderfrog's battle report
Huge DakkaDakka post with lots of pictures from user jy2 starting here
'ard Boyz list and tournament summary from prometheusatwar.com
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Post links to your own Grey Knights 'ard Boyz results in the comments!
