To clarify my earlier post, I'm not saying the only thing Ricks can do is clank. But, they are really good at that. If you happen to find one that has that magical amount of fretboard bounce, clanky resonance at the bridge, and just singing mid sustain so much that the bass feels like it's "playing itself," you will understand. The Rick was the first bass I got decades ago that made it physically easier to play.
I'm just saying that if you want an aggressive clanky tone that isn't scooped with a full rip-your-face-off midrange presence, you can't beat a Rick. Compare Geddy's perfect Rick tone on the "Exit: Stage Left" video with it's creamy meaty luscious midrange grime and attack along with its severe low end growl and chunk against his most aggressive "Rush In Rio" Jazz tone, which while not bad, is a buzzy sizzly scooped mosquito-y synthetic version of his old Rick tone. Now, his Jazz got close to his Rick due to his old preamp setup (think "Tom Sawyer") but what he achieved with his Jazz starting on "Permanent Waves" to emulate the Rick, the Rick just kinda already did on its own.
However, there are a zillion other iconic Rick tones that sound nothing like Geddy, and are just as great. Off the top of my head:
1) Paul McCartney on the "Wings Over America" album and VHS/Laserdisc version of the video (different mix, much more bass heavy)
2) Geezer Butler on the "Never Say Die" live video; amazing low thick mid presence and clankless aggressive grime; super full & encompassing
3) Chris Squire on all early Yes (great clean as well as distorted clanky tones)
4) Randy Meisner of the Eagles (his tone on the live clip of "Hotel California" from 1977 is great)
5) Lemmy, just to show you another tone a Rick can get (if you want to piss off your entire band)
6) Tiran Porter on early Doobie Brothers; doesn't get more anti-clank than this
7) Roger Glover on early Deep Purple; flabby, gurgly, no clank, but great mid splatty pick tone
8) Glenn Hughes on Deep Purple's "Made In Europe"
9) If you think Geddy's Rick tone is one-dimensional, check out "Anthem" from "Fly By Night"; totally clean, perfect, tubby, and cutting
10) Roger Waters on early Pink Floyd; his tone on "Atom Heart Mother" is great great great great clean classic Rick picked neck pickup
11) Mike Rutherford on early Genesis; he copied Chris Squire's tone here and there, but usually had a great cutting clean tone of his own
12) Cliff Burton on early Metallica; the classic metal bass tone without being scooped or too trebly (unlike the 80's bass tone of a band like Testament)
13) Here's one of my favorite Rick tones, I don't know who it is, but listen to how it drives this Gladys Night track; distorted as hell, looks like a small Bassman head (at 1:21) turned up all the away. The regular version of this song doesn't have nearly this energy, and it's all attributed to the Rick: