I am 5' 11" and find the two inch cuffs to be a delightful revelation for me. Maybe it's my enormous square head, or preference for much higher waistlines than the GQ-mangina trend, but the proportions make me very happy.
Today I am wearing a Post Imperial square, in all its ostentatiously-frayed glory, with a tie from Yellow Hook that is probably my favourite. I love those guys. I just wish they'd get on with making some more ties - they sell out too quick when I've spent all my money :)