I voted P bass because I love how absolutely raunchy it sounds when you slap it. Plus, I find that P basses require little to no eq-ing in order to sit well in a mix, regardless of how I play them. That being said, I do love the sound of slap bass on Jazzes and Stingrays. I imagine that if I owned all three, whichever I would favour would almost always depend on the context and on my mood.
That's easy. My slightly modded (Badass Bridge) '75 Jazz Bass, always with my trusty, old-school clip-on Sadowsky Preamp. Hands down, it has the most beautiful tone one could ask for, or want. The only thing I would change? I wish it were a 5-string. Because if it were, I'd never, ever play my current 5'ers. And that's sayin' something..... Pre-Gib Tobias Classic 5, and my Carvin LB75 (Koa/maple), that's literally neck & neck to my Tobias, as far as tone/playability.
I voted ray. All things equal, non modified, etc a ray has the scooped sound and feel that begs to be slapped. Honestly though I'd never by a bass just for slapping purposes, any one will do.
Music Man Sterling H in Parallel mode with a little scoop dialed in on the EQ. I would definitely put it up against any J bass.
Hell. I'm a Jazz Bass guy. And I suck at slap anyway. And my Jazzes are modern, not 70s spacing. But slap just jumps out on a Stingray, compared to my basses. Slap is only an occasional part of my repertoire, so Im not changing basses for what I find to be a narrow functionality, but Stingray does slap!!
Same as my favorite bass for everything else. Rickenbacker 4001/4003. Or the Carl Thompson basses Les Claypool uses.
I've heard some of the most amazing slap tones come out of a 4001 with flats. Alembics have a really great slap sound as well.
This x 10000 I'm not saying I'm good at slap but I got a good sound out of a scooped P bass and then a good slap sound out of a Warwick with cranked mids.
+1, mmKay? My fave bass for slap is an Ibanez Roadstar modded with an ATK bridge/pup. That or my Squier Jag HB. SO, Carrotbass got my vote.