I had to think about it for a minute, but it's really the clavinet. One of my earliest inspirations in music is when I went to the symphony as a kid. they were trying to be hip and played "A Fifth of Beethoven", it was the late seventies/early eighties so the pianist was rockin' a real D6, and I remember being transfixed with the sound. It was like somebody crossed an electric guitar, harpsichord, and a clucking chicken into an instrument: pure boogie.
I bought a pristine example from one of those little mid-western music stores that had it NOS from "79. A buddy and I kept passing the store on the way to a skatepark and half jokingly believed there must be some treasure in that old store, and must had driven past it a thousand times until one day......... the park was closed.
We walked in and I literally almost died. Brand new,never been touched, still had the tag, legs, tools, cable, and cover Hohner D6 Clavinet. $600 and a J Bass later I walked out with the funkiest instrument ever. Sold to a fine gentleman in Australia around 2007 for a fistful of cash.
The one in Logic Pro is pretty dope I must say.
I play guitar, keyboard and flute regularly (and sing) and my preference is pretty much in that order (I'd just put singing on second place). Couple years ago, when I tried to become self-sufficient composer/producer, I practised bass a lot in order to prepare myself for playing the cello (I wanted some strings in my songs). I also toyed with clarinet and sax a bit, but never really got into it.
It was insane. Three instruments are more than enough for me to (at least) maintain the playing skill, or slowly improve it...