Hi Marvin, if some of this helps great. Been playing 4 string for about 18 years before going to five, I did have one of my basses strung BEAD at times but did not always find that very versitile. It did take me a long time to get used to the B instead of E because I referance from there, I much prefer the five to a four even though I play very much like I'm on a 4 string, I hardly play below the low D. Reason I like 5 string:
I prefer the neck shape on most 5's they are wider but usally a bit flatter which I like.
I do quite a lot of theater work were I'm reading from orchestral arrangements, having the extra string makes reading easier, a lot of these parts are in Ab, Eb, Bb and F, other keys to but the low F comes in a lot and having it on the 6th fret on the low B puts more notes under your fingers and helps by not having to jump to the first fret all the time.
An extra string to play is also an extra string to keep quiet, especially if you are going through a big system, an underlying drone of unmuted strings under your bass part is not good, with the five I rest my thumb on the low B, sometimes on the E if i'm playing more than one note on the G string, I play finger style with rest strokes so the string above the one I'm playing is muted, I use mostly two fingers and the third for muting, so if I'm playing on the D string, my thumb is blocking low B, my third finger is resting on the E and the playing fingers are muting the A. There are other ways, that just works for me, hope this helps and enjoy what ever you decide on.