I think I have worked out what's most important to me in a bass.
It's not the neck, or pickup arrangement or even number of strings. It's a smaller body.
The two basses I've got on best with recently is my MTD Kingston K5 and a Sandberg Electra VS4 which I regret selling a bit. I've currently got a Sire V7 which just isn't working, just like the other 3 jazz basses I've had in the past haven't worked.
And recently I tried a Squier CV 50s P Bass which was great, but the G&L SB2 I tried after just felt better to me. Of course, this could just be another phase but having a large bodied bass might be something I just don't like. Anyone else in the same camp?