I'm going to put my choices into 2 categories: Aromatics, and AROMATICS. You probably know what I mean.
For Aromatics, I'll cast another vote for Bagpiper's Dream. Recently I picked up some Esoterica Pembroke and I like it a lot...FMC got me started on aros with latakia, so I'm on the lookout for those. Peterson Irish Oak is a favorite that I plan to keep around on the regular.
For AROMATICS: Haven't tried a huge number of AROMATICS. I like Ashton Guilty Pleasure as well as Rattray's Summer '18 and Summer '14.
I think Mac Baren Scottish Mixture should be on my list somewhere, but I'm not sure where. The GF doesn't like the smell of that one, but she likes Black Irish X. She doesn't smell smells like the rest of us, I think. She always thinks milk smells sour even if it's fresh, for example. She doesn't like MM 965 either, so its demise may have saved our relationship since I love the stuff.
Honorable mention: Sutliff Buttered Rum, for its mixing abilities. I like it with Three Nuns myself.
Since I first picked up a pipe, I considered myself a non-aro smoker and smoked English blends and Va/Pers petty much exclusively. Recently I discovered that I do, in fact, enjoy good aros. It turns out that I just don't like Captain Black.