Why can't I think of any blend that I totally disliked? Maybe I am blocking those experiences, or perhaps I have no taste at all.
Most of my complaints are sort of lame. I thought Half-and-Half was a little harsh for a simple Virginia-burley blend, but I finished the pouch and just didn't buy it again. A few blends tasted quite good but didn't burn very well, though I have solved that by grating the pieces into a smaller cut that burns better.
I've had some extra strong blends, like Tambolaka, an Indonesian air-cured burley, but I bought it to try a very strong leaf, and liked it for what it was.
Long ago, I dove into Nightcap and smoked a little too much a little too fast, but I enjoyed it at a slower pace.
I think you have to learn most blends. If you can smoke them enough to learn how to smoke them, you will probably enjoy them to some degree.
I should have had a career as a diplomat. But if I think of a blend that really was reprehensible, I'll speak up.