I'd have to say Levent Mixture and Blairgowrie, although it's been a while since I've smoked any of them.
I keep a number of "working jars", little bail top jars that hold 2-3 oz. of tobacco for stuff I've opened, and work through those until I empty them. Initially I tried to limit those to a reasonable number, but over the years it's crept up. I have probably 50 small jars now. And at the rate I smoke, it takes some time to get through a jar. Even if I'm lucky enough to live a few more decades, I'll probably still have stuff left.