Originally Posted by
Cardolan
The T10 is very lackluster in comparison to the alternatives, and in my opinion not worth using (aside from the helm, which has no better alternatives). That's obviously rather dependent on what content you have access to, though. If you're limited to 10 mans, the T10 helm and shoulders, plus the nonset chest and gloves and crafted legs is the best setup.
The emblem of frost belt is going to be a huge upgrade for you, more than any other item you could buy, so I'd go for that first.