It's hard for me to choose what my favorite Beyoncé album is but I always find myself leaning towards "4." I loved the sounds on that album and I also think she was vocally at her best. "End of Time" is one of my favorite songs by her EVER so that would be so cool to hear an entire album geared towards that Fela-inspired sound. Every album though she says she always records around 80 songs so it wouldn't surprise me if she had more that sounded like that during the "4" era.