Sorry, late response since I don't hang around these forums much.
Wouldn't it be ridiculously easy to rank as Unholy in current content, given the fact that most DKs play as Frost at the moment?
I kept logs since MSV went live and I was parsing higher than frost dks in a few 10 man fights, top 10 parses. It was pretty even between both specs, as it is intended. It wasn't until the unbalanced tier pieces came into full play that skewed things in frost specs favor. This is the reason why 2 tier piece is getting nerfed hard in 5.2, even GC admitted it was unbalanced. The tier pieces were just one issue though.
As I have stated on the MMO champ forums, even if a lot of people swapped to unholy spec is that going to make me drop from top 5 parses to 200? Will it make my dps drop from 150k on a boss to 100k for some reason; especially if I'm playing the class at 100%. There would be more competition at the top but I look forward to competing for top parses in 5.2. We have done enough theorycrafing on MMO Champion dk forums for the last couple of months for the upcoming patch, I feel like I have a long head start.
I have to admit one thing though, and that is playing with some guilds where heals were not cutting it or dps was not hacking it, you learn to play even better......or carry harder. If playing the class at 100% wasn't enough, than I would play it at 110%.
edit: Although I have a wonky schedule atm, I have a good amount of stock invested on the MMO champ forums, in how to play, and how well unholy is to perform in 5.2 . So for epeen purposes I intend on doing really well next patch, I have to.