...by confessing that I didn't read the stat blocks. Frankly, the alternative was not to vote at all, but if I'm in the market for the published book that eventually comes out of this (and I am - I bought the one that resulted from last year's contest), I figure I have as much right to vote as anyone else.
Of course, I could have just lied, and pretended that I'd judged the round on the basis of what I was "supposed" to like, and not on the basis of what I really did like (i.e. the villain concepts). The angry response came even quicker than I'd figured (just 20 minutes), but I can't say it wasn't one I didn't anticipate. So, take it as you will - and I guess the Paizo judges can even strike my votes, if they really want to, since I was open about what they were.
Next round, of course, will be a different matter. I won't pay any attention to any stat blocks in the lair (assuming there are any), but I can, and will, vote on the concept and any stat-free description. So, those of you who I voted for this round - don't think you'll get a free pass in the next!
Although, I am curious... am I the only one here who wouldn't know a decent Pathfinder stat block from a poor one, or are there others with various degrees of unfamiliarity with the system? If so, did you abstain, or use some other criterion to judge the round?