Found a couple of great PvP videos on YouTube by plainshifter1, who plays a Cleric on the Chinese server Chromede. These are some of the best I have seen thus far, really well made.
The first, unfortunately, had the audio removed by YouTube, but its still an awesome display of PvP. Clerics look to be tough at endgame!
The second is a continuation of the above, thankfully the audio is still intact! This guy is really good!