Such kind of question, if taken seriously, will most probably lead to the "what is TRU metal". As a grown-up person, I would say what the hack, why should I even waiste my time on such discussion. It goes to nowhere, there's no "right" answers, and all there is to be said is "XXX plays YYY", "ZZZ feels good in the pocket" or, the worst kind, "I play NNN". The first one will only tell who knows more bands/bassists; the second will show the commentor as a cautious person who is not sure if his ,02 are relevant and/or should be taken into consideration; the lettar quite obviously substitutes the topic in question with the topic of length of penis of the given individual.
However, the child inside wants to drop his 2 roubles so why not, it's only time
So many subgenres listed will, as I said, lead to the question what band/bassist/album should be taken as measure. Death metal? Why, Arch Enemy uses a 4 string detuned Ibanez Iceman while Carcass used Aria Pro (and we know Arch Enemy started as a commercial project based on the late Carcass, don't we?). All of Children of Bodom used Jackson guitars and basses, but then all of them got endorsement from ESP so why bother; Death (the band) was PLENTY of bassists, so who do we care for? Probably Steve Di (green fretless ESP F) and Terry Butler (mostly P-bass); they did use an Alembic in 1993 too. Paul of Cannibal Corpse used an Ibanez SR for an instance, thinks a Modulus Q is a best bass to tour with, considers US Spectors to be the best basses ever but they cost too much, so a Czech Spector is a go-to bass. And so on and on and on, leading to the point that basses that make the weather in the given genre sometimes weren't even picked by due to musical preferences but to circumstances. To say nothing of new bassist in a band who is most likely to take his fav rather than copy the previous member of the band.
P.S. I remember watching a vid of Metallica auditioning guys to substitute Jason. Somebody (Trujillo?) enters
a room filled with all kinds of basses and guitars and is told Jason had taken his basses with him; he is then asked what kind of bass he would like to try out. I mean, most guys that came there were professionals; Metallica were right to give the an opportunity to choose from a selection, and, mind you, Jason's basses were gone by that time. Also, Metallica were going through this for the second time; they didn't want a second Cliff Burton, nor a second Jason Newsted, just someone that would kick ass and fill the pocket.
Speaking of Newsted, he's one picky son of a b. Alembic, Sadowsky, Spector, Wal, Zon, Rickenbacker, '58 P-bass, - that's not a complete list of what he used, and that's for one band.