I love 5 strings - don't use 4s anymore, so I hope you find a really good one!
Lots of sense in these posts, but I notice no-ones specifically mentioned scale length. I own two 5s, one a 34" and the other a 35" and the low B is much better on the 35". They're very different basses though, so it's not going to be the only factor.
Obviously you've got to be comfortable with what you choose, but scale length is maybe something to consider.
Haven't played even half the basses mentioned here, but for what it's worth my main bass is an Overwater and it's great!
(Apologies for the sparse profile stuff - only just joined so I could put my oar into this topic)