@cmcleman: if you want to whet your appetite, here are the top twenty (broken up because of this forum's character limit):
sort -t \" -k 12 -n -r comments.xml | head -n 17
The -t \" -k 12 means "look at the stuff between the 11-th and 12-th quotation mark" (actual quotation marks in comments are encoded as " so this always gets the right field). The -n -r means to sort all the comments numerically rather than lexicographically, and in reverse order, so that the biggest numbers come first. Piping it to head -n 17 means, "just show me the 17 most highly voted comments" ... if you leave this off, you'll end up with a list of all comments sorted by score in descending order.
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