BT just never caught on with me. Maybe I'll listen to it later, but I distinctly remember hating it.
And for those arguing Aesop, I'd argue this guy is #2 [behind Eminem Bane ha]
YouTube - Zion I - Caged Bird Pt. 1 (feat. Brother Ali)
Ali is the second guy on. I'd probably put Slug before Aesop, too.