I have a Lollar Firebird pickup and it's great. There's no BKP equivalent to compare with.
Incidentally Lollar's customer service is also great. I don't know how "big" a company they are, but I emailed them with several questions and got prompt replies from Jason Lollar himself.
(Off topic, I think a lot of the smaller guitar equipment companies are owned by real guitar nuts who'll go out of their way to be helpful. I once emailed Tom Anderson Guitars with a question that wasn't really even about their products, and got an immediate reply from Tom Anderson himself. And it was a Sunday afternoon. :) )