Just as a little note, in case anyone missed it: the statistics page has detailed stats for each boss now (these are private, so you have to be logged in to see yours).
So, in case are curious what bosses are particularly troublesome - that's the list for you. XD Note that wipes have only been tracked for about two or three months, so anything before that won't be counted (leaving the map before the boss resets, or the boss resetting counts as a wipe).
The same page also tracks your progress on the various world events now, showing how often you cleared them, and the highest rank you received on any of them.
