Over the last year I've shot up 24 pounds of GOEX, a pound and a half of Pyrodex, and about half a pound of T7, so you can pretty well figure out what I like.
I bought a canister of Blackhorn two years ago. Still have half of it left. Might try it again some day but don't have a lot of incentive to do so.
Call me a nut if you want, but my opinion is GOEX is the most useful and forgiving powder out there.