Haha, I think this is pretty fun.
1) non-bypassable preamp: I like to be able to go passive, for both tone, and battery reasons
2) more than one volume knob: I hate having two volume knobs. I like there to be one knob for volume, and one for a pickup pan. Makes things a whole lot easier
3) skinny necks: I don't know why, but my hand cramps up when I play on really skinny necks (think ibanez) I'm more of a warwick guy
4) neckdive: I don't think anyone is going to disagree with me on this, but I have to be able to let the bass go while it's strapped on, and have it stay
5) less or more than 6 strings: I might be able to do with a fiver, but really, for some reason I'm just at home on a 6 string
6) neck throughs: It's not really a deal breaker, but I prefer bolt on, for both tonal, and accidental reasons (if the neck breaks, I can just buy a replacement neck)
7) huge bodies: I don't care if it's chambered and airlight; if the body is huge, it just irks me.
8) a bazillion knobs: I know, I know, you get used to it. But I like there to be as little for me to accidentally flip/twist/press while I'm playing.
9) too "laid back" of a tone: I like my bass sound to demand recognition. I want it to punch through the crowd
10) finished basses: I like the natural wood to shine through. I especially like the look of wax finish instruments.
~K