I used to think that you couldn't EQ one bass to sound like another too, that's why I went through so many basses, but I think I'm beginning to realize that you can, again, unless you're trying to make a bass do that burpy bridge pickup fingerstyle sound when it doesn't already have it.
You have to wonder how bassists like Ed Friedland can get a great sound out of every type of bass (see YouTube); it's not just that he's a great player, I really think it's because he has a great ear and ability to adjust his technique and EQ his bass and amp based on what he hears. On the other hand, listen to a beginner bassist and most likely not only will his playing suck, but his tone will suck too, regardless of the bass.
It's the same in the audiophile world; everyone wants to achieve audio nirvana with the EQ set flat, they will not mess with the EQ no matter what. Serious audiophiles will spend tens of thousands to tweak their sound slightly, when it many times can be achieved by tweaking the EQ and adjusting the speaker/listening sweet spot placement. For that matter, most high end amps don't even come with an EQ. My point is, why spend so much time and energy on gear (which I'm guilty of), when in most cases, you can adjust your technique and EQ the sound you want?
I recently got a chance to talk with Norm Stockton at the MTD booth at NAMM and it was obvious that he had great chops and a great ear, but so surprising how little he knew about gear. He didn't know what kinds of pickups he had in his own MTD J bass or whether it was single coil or not, not even the scale of the bass! That really made me think about concentrating more on playing!