According to some preliminary sims, it's a
13% difference, without raid trinkets(see Trinkets tab):
https://docs.google.com/spreadsheets...#gid=166430616
If it were, say, a 2%, 5%, even 7% difference in damage, I wouldn't give a shit. But this is just too much a gap.
Even if I CAN play Frost in my current guild, I'm not sure if I want to so badly that I'm doing 13% less damage, and have less survivability. And I need my OS to be Blood, as I may be tanking at some points. UH's better in PVP too from what I've seen. I think the only thing holding me back at this point is dual wielding, and all those sweet 1 hand weapons I have, TBH. But I can always just fuck around with mog without spending AP on a low spec that's also not best for PVP.
At the very least, I'll be holding off on spending AP on Frost for a while. Or say if I ever get beat by the UH DK in my guild I'm switching.