I would say that if you're going to buy sight unseen, there are a couple of things to know.
First, most people are disappointed by active Fenders and passive Warwicks - not a hard and fast rule, so hold your fire, but a commonly observed phenomenon.
Second, EBMM probably has the best quality assurance of the production basses you mentioned, though you can find a bad one from time to time, and they are active only. Also if you find you don't like what a Stingray does, you are stuck. The same applies to Warwicks, many of which (like the Thumb) do one thing very well, but it's a thing some people really don't care for.
Third, a good Fender Precision is capable of far more than one tone, the vast majority of people here would consider it the archetypal bass that works for almost any kind of music, and instead of going for active preamps and multiple pickups, it might be best to look for a high-end Precision. I can tell you that a nice used '63 or '58 AV reissue P-bass can pump out ridiculous amounts of low-end, sits in the mix better than anything else, is essentially bulletproof, doesn't need a battery, and holds resale value very well.
Just my two cents.