I've spent most if my bass hours on 5ers, though my formative years (11-19) were on a 4 string. I have "come home" recently to four strings and I love it. The sleekness and simplicity of one less string to mute has been enjoyable to say the least, but I miss my low notes. The BEAD offers the sleekness I referred to but lacks the high notes. The obviosus answer is "both", and that will be my answer, but for the purpose of discussion, what would you prioritize? What if this 5er or BEAD is to be strung with flats? Does that change your thinking?