I think Vic has used a PAX and both a JAX and JVX in recent years (and another bass with Seymour Duncan dual coils - correct me if I'm wrong on any of this). Don't know if that's what's on the standard models.
My first (and still main) bass had EMGs in it when I got it, so that's what I started with and what I played up until this year. Several players who told me that they hated EMGs also told me that they loved the sound of my bass (a simple, old Japanese Fender). With passive pickups (and 500K pots with smaller caps) in it now, I do hear some details - windings of the string and such - that I didn't before, and I feel that real subtlies of touch come across a little better - I can just brush the string and that's a viable sound, live. But I've played passive basses with which those details were less present than with the EMGS.
People say that EMGs make everything sound the same, but I don't think that's the case. I don't think my bass sounded like Vic's even though we had the same P/J set in there for awhile. I do hear some coloration now - some tone shaping/rolloff in the EMG pre, but that's the case with a lot of passive pickups, too, just arrived at differently. There might be some compression going on in the old pickups (maybe the new ones, too, but I don't have much experience with those) but, again, they were more dynamic than a lot of passive pickups. People have said that they sound too perfect/clean and kind of boring in that regard - I guess I can see that. They can get growly for sure, but I don't hear them as getting very rough or hairy, even when you dig in.
I'm not saying that they're the perfect pickups - I've heard sets of theirs that I didn't like, at least not in the instruments I heard them in, and that brought to mind some of the stereotypes people have about thin, processed sounding tone - and if I didn't want to explore more, I wouldn't have started experimenting with passive pickups after all these years. I come from playing bowed strings (cello and doublebass, primarily), and there is a certain, woody naturalness, detail, and dynamic feel that I'm chasing (all that in a package that doesn't hum, please

), but I digress. The EMGs served me well for years - felt they responded well to technique and took EQ at the amp well - and I didn't feel restricted to just one sound with them, even without an onboard pre. I might not be the most objective about that, though!
Er... What thread am I in again? (Sorry, Duke!)