Hands down,my best 4-string is the Alembic Series I on the left. But the three lying on the floor are no slouches either.
Typically, I take two basses to practice and to gigs. A four and a five. If I decide to only take one bass, it's one of the two 5-strings. Just more flexibility.
This is the first time in almost 10 years that my 4-string basses outnumber my 5-string basses. The last few years it has been 3 & 3.