Hehe, of course, ferals are in top 3 classes best for 1vs1 combat.
I tested DK today in all 3 specs and both variations of gear, PvE and PvP. UH DK still does the same necrotics. Frost DK does a little bit less absorb, but considering it's a burst spec, it's intended. Blood spec necrotics barely tickle.
Alliance side is full of people using PvE items, especially trinkets. I tested today on my feral with 2 of the 566 PvE trinkets. I put up a 70k Rip on a UH DK, while in full PvP gear(no PvE trinkets) I did up to 47k on him in full burst. I tested with a DK because they have alot of armor.
70k Rip tick on PLATE is ridiculous, but only because I was crippleing my Resilience by alot(so basically I can put 2 bleeds on a target that will kill 900k HP, but I die in 3 hits versus anyone). On cloths it can go up to 100k/tick.
Besides rogues, not many classes and specs can afford the loss of the PvE trinkets. You trade a huge chunk of survivability for ~30% more damage, and mind you this is ONLY because the PvE trinkets are bugged, granting double(or more) then their intended stats. (for example, the PvE trink that's supposed to give 13k Agility, gives 44k).
So, to end this discussion, feral bleeds are working as intended but there IS the occasional druid who's using those trinkets to completely devastate anyone. That doesn't mean bleeds are bugged, that means Trinkets are bugged and the people using them are abusing a bug.