DH is fun play. But only elves made me feel boring watch them.
Reason every players same only night and blood elves like overrated.
I really hoped Darkspear/Zanda troll and Draenei become DH. Would make me less boring.
What your person wish race as DH you play?
Coming from someone who appreciates the lore and long time DH Player , I wouldnt ever switch the race.
Then again, I am biased, I am one of those overrated Blood Elves 
That would depend on the reasoning.
Like, come on, before Cataclysm, people conveniently forgot that it made no sense - and it was laughable - to even THINK that tauren could be paladins and priests. Or even Blood Elves as Warriors. (remember the whole ‘warriors are a man class’ thing? yeah, it happened.)
We’re only refusing to entertain the potential because there is no backing nor reasoning to it. Make one, and watch the possibilities flourish. ( They even made sense of Lightforged becoming Warlocks for pete’s sake… )
… But yes, DH Trolls would be my personal catch.