This thread is really interesting to me. To be honest, the uniqueness factor is what keeps drawing me back to pipe tobacco. I like smoking something that I can't really put my finger on. For me, the interesting blends have been--
-Royal Yacht. All the love/hate reviews intrigued me, and I really liked it. The strength is also intriguing to me.
-McClelland 2045 Oriental - I ordered a few oriental blends, but to my palate, the orientals are a distant second to the latakia in terms of flavor profile. With the 2045, the orientals are the focus, which for me (as a new smoker) is really interesting. I know it's probably not that unique, but remember--I'm still somewhat new to pipe smoking.
Thanks to this thread some Grousemoor is now in my P&C Basket, along with some 1792 Flake for good measure. Time to venture into the Lakeland district.