I would say T3, both because it looks freakin awesome and also becuase it was one of the hardest sets to get. Maybe it was only on my server but there was like 2 or 3 that got it before BC. So when someone was marching through Stormwind with that gear he was as highly ranked as the warriors with full GM-set. When people is comming in ful T-10 today its like why do you have 5 parts???? You should only have 4. Then it's not realy epic in my eyes. Vanilla FTW