Does Lake Wintergrasp seem dominated by only one class, or is it pretty even among the 80s?
Unholy Death Knights are the current "overpowered spec of the day" (formerly the role of Ret Paladins) so there's tons of those rocking face right now. Beyond that it's pretty difficult to judge, since Blizzard hasn't balanced all of the numbers yet and few people are in Resilience gear. The only really memorable thing are the absolutely enormous Scourge Strike crits. By enormous I'm talking numbers anywhere from 10,000 to 16,000, and since it's Shadow damage, your armor isn't going to do a darn thing to help. Luckily, I was healbotting one of those Unholy Death Knights rather than being on the receiving end. Death Knights are bloody fantastic at keeping people off of Healers, by the way.
yazah asked a couple of questions...
Why does the Scarlet Crusade employ Death Knights in Northrend? Doesn't that seem unlikely since they were slaughtered by them back in Tyr's Hand?